Bump indoc from 2.0.4 to 2.0.5 (#2350)

Bumps [indoc](https://github.com/dtolnay/indoc) from 2.0.4 to 2.0.5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/indoc/releases">indoc's
releases</a>.</em></p>
<blockquote>
<h2>2.0.5</h2>
<ul>
<li>Documentation improvements (<a
href="https://redirect.github.com/dtolnay/indoc/issues/62">#62</a>,
thanks <a
href="https://github.com/ilyagr"><code>@​ilyagr</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/indoc/commit/4bfa29fcde487bd57c61db452773fff50f20c819"><code>4bfa29f</code></a>
Release 2.0.5</li>
<li><a
href="https://github.com/dtolnay/indoc/commit/8d38299fa616303e4c8d7fe312e31e25d849b668"><code>8d38299</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/indoc/issues/62">#62</a> from
ilyagr/docstring</li>
<li><a
href="https://github.com/dtolnay/indoc/commit/735ddcc3688d2639f1c7eb1fd3660ba4160fcb90"><code>735ddcc</code></a>
Update docstring for <code>indoc!</code></li>
<li><a
href="https://github.com/dtolnay/indoc/commit/60b5fa29ba4f98b479713621a1f4ec96155caaba"><code>60b5fa2</code></a>
Remove 'remember to update' reminder from Cargo.toml</li>
<li><a
href="https://github.com/dtolnay/indoc/commit/15abc17b2332f53e58aa11da3bb20995db30fbbf"><code>15abc17</code></a>
Test docs.rs documentation build in CI</li>
<li>See full diff in <a
href="https://github.com/dtolnay/indoc/compare/2.0.4...2.0.5">compare
view</a></li>
</ul>
</details>
<br />


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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>