chore(deps): bump sphinx from 8.0.2 to 8.1.3 (#326)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 8.0.2 to
8.1.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/sphinx-doc/sphinx/releases">sphinx's
releases</a>.</em></p>
<blockquote>
<h2>Sphinx 8.1.3</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/8.1.html">https://www.sphinx-doc.org/en/master/changes/8.1.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13013">#13013</a>:
Restore support for <code>cut_lines()</code> with no object type. Patch
by Adam Turner.</li>
</ul>
<h2>Sphinx 8.1.2</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/8.1.html">https://www.sphinx-doc.org/en/master/changes/8.1.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13012">#13012</a>:
Expose <code>sphinx.errors.ExtensionError</code> in
<code>sphinx.util</code> for backwards compatibility. This will be
removed in Sphinx 9, as exposing the exception in
<code>sphinx.util</code> was never intentional.
<code>ExtensionError</code> has been part of <code>sphinx.errors</code>
since Sphinx 0.9. Patch by Adam Turner.</li>
</ul>
<h2>Sphinx 8.1.1</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/8.1.html">https://www.sphinx-doc.org/en/master/changes/8.1.html</a></p>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13006">#13006</a>:
Use the preferred <a
href="https://www.cve.org/">https://www.cve.org/</a> URL for
the <code>:cve:</code> role.
Patch by Hugo van Kemenade.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13007">#13007</a>:
LaTeX: Improve resiliency when the required
<code>fontawesome</code> or <code>fontawesome5</code> packages are not
installed.
Patch by Jean-François B.</li>
</ul>
<h2>Sphinx 8.1.0</h2>
<p>Changelog: <a
href="https://www.sphinx-doc.org/en/master/changes/8.1.html">https://www.sphinx-doc.org/en/master/changes/8.1.html</a></p>
<h2>Dependencies</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12756">#12756</a>:
Add lower-bounds to the <code>sphinxcontrib-*</code> dependencies.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12833">#12833</a>:
Update the LaTeX <code>parskip</code> package from 2001 to 2018.
Patch by Jean-François B.</li>
</ul>
<h2>Incompatible changes</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12763">#12763</a>:
Remove unused internal class <code>sphinx.util.Tee</code>.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12822">#12822</a>:
LaTeX: for Unicode engines, the <code>fvset</code> default is changed to
<code>'\\fvset{fontsize=auto}'</code> from
<code>'\\fvset{fontsize=\\small}'</code>.
Code-blocks are unchanged as FreeMono is now loaded with
<code>Scale=0.9</code>.
An adjustment to existing projects is needed only if they used a custom
<code>fontpkg</code> configuration and did not set
<code>fvset</code>.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/sphinx-doc/sphinx/blob/v8.1.3/CHANGES.rst">sphinx's
changelog</a>.</em></p>
<blockquote>
<h1>Release 8.1.3 (released Oct 13, 2024)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13013">#13013</a>:
Restore support for :func:<code>!cut_lines</code> with no object type.
Patch by Adam Turner.</li>
</ul>
<h1>Release 8.1.2 (released Oct 12, 2024)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13012">#13012</a>:
Expose :exc:<code>sphinx.errors.ExtensionError</code> in
<code>sphinx.util</code>
for backwards compatibility.
This will be removed in Sphinx 9, as exposing the exception
in <code>sphinx.util</code> was never intentional.
:exc:<code>!ExtensionError</code> has been part of
<code>sphinx.errors</code> since Sphinx 0.9.
Patch by Adam Turner.</li>
</ul>
<h1>Release 8.1.1 (released Oct 11, 2024)</h1>
<h2>Bugs fixed</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13006">#13006</a>:
Use the preferred <a
href="https://www.cve.org/">https://www.cve.org/</a> URL for
the :rst:role:<code>:cve: &lt;cve&gt;</code> role.
Patch by Hugo van Kemenade.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13007">#13007</a>:
LaTeX: Improve resiliency when the required
<code>fontawesome</code> or <code>fontawesome5</code> packages are not
installed.
Patch by Jean-François B.</li>
</ul>
<h1>Release 8.1.0 (released Oct 10, 2024)</h1>
<h2>Dependencies</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12756">#12756</a>:
Add lower-bounds to the <code>sphinxcontrib-*</code> dependencies.
Patch by Adam Turner.</li>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12833">#12833</a>:
Update the LaTeX <code>parskip</code> package from 2001 to 2018.
Patch by Jean-François B.</li>
</ul>
<h2>Incompatible changes</h2>
<ul>
<li><a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12763">#12763</a>:
Remove unused internal class <code>sphinx.util.Tee</code>.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/a1510de4777eaa2e569435f95b05f6f3293d7035"><code>a1510de</code></a>
Bump to 8.1.3 final</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/62e9606d63c8bbb4964213fd6b427d1483847662"><code>62e9606</code></a>
Restore support for <code>cut_lines()</code> with no object type (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13015">#13015</a>)</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/5ae32ce9bfe4a17a7f00e1e8d39a80449423c726"><code>5ae32ce</code></a>
Bump version</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/a72b47bb408923cb7809eb9f96885545184e3773"><code>a72b47b</code></a>
Bump to 8.1.2 final</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/39a45ad4073a4d8c3b7dfd64d22e8a88870dcc7c"><code>39a45ad</code></a>
Expose <code>ExtensionError</code> in <code>sphinx.util</code> for
backwards compatibility.</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/5a4859a2e489c66b38804e95bf77fd0baf4320dc"><code>5a4859a</code></a>
Add docs about sphinx-autobuild (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13011">#13011</a>)</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/05679efe7b34f8b2fb87605438c40248ac8cae83"><code>05679ef</code></a>
Type-check the 'autodoc_intenum' example (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/12827">#12827</a>)</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/86d1d31fb370f031739079de7d827be0074e7661"><code>86d1d31</code></a>
Prune CHANGES of unneeded sections</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/b6269d3790bb3bdd652ce67fecb59e6afddc8014"><code>b6269d3</code></a>
Improve documentation for the Builder API (<a
href="https://redirect.github.com/sphinx-doc/sphinx/issues/13008">#13008</a>)</li>
<li><a
href="https://github.com/sphinx-doc/sphinx/commit/c46abc47210088a6c4fee9dac23badfcebc441d7"><code>c46abc4</code></a>
Improve clarity for <code>master_doc</code> and
<code>root_doc</code></li>
<li>Additional commits viewable in <a
href="https://github.com/sphinx-doc/sphinx/compare/v8.0.2...v8.1.3">compare
view</a></li>
</ul>
</details>
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docs-requirements.txt

@@ -294,9 +294,9 @@ soupsieve==2.6 \
     --hash=sha256:e2e68417777af359ec65daac1057404a3c8a5455bb8abc36f1a9866ab1a51abb \
     --hash=sha256:e72c4ff06e4fb6e4b5a9f0f55fe6e81514581fca1515028625d0f299c602ccc9
     # via beautifulsoup4
-sphinx==8.0.2 \
-    --hash=sha256:0cce1ddcc4fd3532cf1dd283bc7d886758362c5c1de6598696579ce96d8ffa5b \
-    --hash=sha256:56173572ae6c1b9a38911786e206a110c9749116745873feae4f9ce88e59391d
+sphinx==8.1.3 \
+    --hash=sha256:09719015511837b76bf6e03e42eb7595ac8c2e41eeb9c29c5b755c6b677992a2 \
+    --hash=sha256:43c1911eecb0d3e161ad78611bc905d1ad0e523e4ddc202a58a821773dc4c927
     # via
     #   furo
     #   phantom-types (pyproject.toml)