Bump Swatinem/rust-cache from 2.7.2 to 2.7.3 (#2925)

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from
2.7.2 to 2.7.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/swatinem/rust-cache/releases">Swatinem/rust-cache's
releases</a>.</em></p>
<blockquote>
<h2>v2.7.3</h2>
<ul>
<li>Work around upstream problem that causes cache saving to hang for
minutes.</li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/Swatinem/rust-cache/compare/v2.7.2...v2.7.3">https://github.com/Swatinem/rust-cache/compare/v2.7.2...v2.7.3</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md">Swatinem/rust-cache's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>2.7.3</h2>
<ul>
<li>Work around upstream problem that causes cache saving to hang for
minutes.</li>
</ul>
<h2>2.7.2</h2>
<ul>
<li>Only key by <code>Cargo.toml</code> and <code>Cargo.lock</code>
files of workspace members.</li>
</ul>
<h2>2.7.1</h2>
<ul>
<li>Update toml parser to fix parsing errors.</li>
</ul>
<h2>2.7.0</h2>
<ul>
<li>Properly cache <code>trybuild</code> tests.</li>
</ul>
<h2>2.6.2</h2>
<ul>
<li>Fix <code>toml</code> parsing.</li>
</ul>
<h2>2.6.1</h2>
<ul>
<li>Fix hash contributions of
<code>Cargo.lock</code>/<code>Cargo.toml</code> files.</li>
</ul>
<h2>2.6.0</h2>
<ul>
<li>Add &quot;buildjet&quot; as a second <code>cache-provider</code>
backend.</li>
<li>Clean up sparse registry index.</li>
<li>Do not clean up src of <code>-sys</code> crates.</li>
<li>Remove <code>.cargo/credentials.toml</code> before saving.</li>
</ul>
<h2>2.5.1</h2>
<ul>
<li>Fix hash contribution of <code>Cargo.lock</code>.</li>
</ul>
<h2>2.5.0</h2>
<ul>
<li>feat: Rm workspace crates version before caching.</li>
<li>feat: Add hash of <code>.cargo/config.toml</code> to key.</li>
</ul>
<h2>2.4.0</h2>
<ul>
<li>Fix cache key stability.</li>
<li>Use 8 character hash components to reduce the key length, making it
more readable.</li>
</ul>
<h2>2.3.0</h2>
<ul>
<li>Add <code>cache-all-crates</code> option, which enables caching of
crates installed by workflows.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/Swatinem/rust-cache/commit/23bce251a8cd2ffc3c1075eaa2367cf899916d84"><code>23bce25</code></a>
2.7.3</li>
<li><a
href="https://github.com/Swatinem/rust-cache/commit/378c8285a4eaf12899d11bea686a763e906956af"><code>378c828</code></a>
Work around upstream GitHub issue and update dependencies</li>
<li>See full diff in <a
href="https://github.com/swatinem/rust-cache/compare/a22603398250b864f7190077025cf752307154dc...23bce251a8cd2ffc3c1075eaa2367cf899916d84">compare
view</a></li>
</ul>
</details>
<br />


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