build(deps): bump smallvec from 1.15.0 to 1.15.1 (#37352)

Bumps [smallvec](https://github.com/servo/rust-smallvec) from 1.15.0 to
1.15.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/servo/rust-smallvec/releases">smallvec's
releases</a>.</em></p>
<blockquote>
<h2>v1.15.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Shrink code produced by <code>smallvec![]</code>. by <a
href="https://github.com/nnethercote"><code>@​nnethercote</code></a> in
<a
href="https://redirect.github.com/servo/rust-smallvec/pull/386">servo/rust-smallvec#386</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/servo/rust-smallvec/compare/v1.15.0...v1.15.1">https://github.com/servo/rust-smallvec/compare/v1.15.0...v1.15.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="d0f47a3ea9"><code>d0f47a3</code></a>
Version 1.15.1</li>
<li><a
href="d682405159"><code>d682405</code></a>
Shrink code produced by <code>smallvec![]</code>.</li>
<li>See full diff in <a
href="https://github.com/servo/rust-smallvec/compare/v1.15.0...v1.15.1">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -7215,9 +7215,9 @@ checksum = "d31d263dd118560e1a492922182ab6ca6dc1d03a3bf54e7699993f31a4150e3f"
 
 [[package]]
 name = "smallvec"
-version = "1.15.0"
+version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8917285742e9f3e1683f0a9c4e6b57960b7314d0b08d30d1ecd426713ee2eee9"
+checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 dependencies = [
  "serde",
 ]