build(deps): update sphinx requirement from ~=7.3 to ~=8.0 (#1374)

* build(deps): update sphinx requirement from ~=7.3 to ~=8.0

Updates the requirements on [sphinx](https://github.com/sphinx-doc/sphinx) to permit the latest version.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.3.0...v8.0.2)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

* ci: bump python version when installing docs deps

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pete Gadomski <[email protected]>

pyproject.toml

@@ -26,7 +26,7 @@ dynamic = ["version"]
 [project.optional-dependencies]
 bench = ["asv~=0.6.0", "packaging~=24.0", "virtualenv~=20.22"]
 docs = [
-    "Sphinx~=7.3",
+    "Sphinx~=8.0",
     "boto3~=1.28",
     "ipython~=8.12",
     "jinja2<4.0",