build(deps): bump unicode-ident from 1.0.18 to 1.0.19 (#39249)

Bumps [unicode-ident](https://github.com/dtolnay/unicode-ident) from
1.0.18 to 1.0.19.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/unicode-ident/releases">unicode-ident's
releases</a>.</em></p>
<blockquote>
<h2>1.0.19</h2>
<ul>
<li>Update to Unicode 17.0.0 (<a
href="https://redirect.github.com/dtolnay/unicode-ident/issues/37">#37</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="dc018bf1ca"><code>dc018bf</code></a>
Release 1.0.19</li>
<li><a
href="9dce213946"><code>9dce213</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/unicode-ident/issues/37">#37</a>
from dtolnay/unicode17.0.0</li>
<li><a
href="17da3fe9b7"><code>17da3fe</code></a>
Force latest=17.0.0 in CI</li>
<li><a
href="acbaf6a39e"><code>acbaf6a</code></a>
Update to Unicode 17.0.0</li>
<li><a
href="e4cceeded0"><code>e4cceed</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/unicode-ident/issues/36">#36</a>
from dtolnay/ucdgenerate</li>
<li><a
href="f871463773"><code>f871463</code></a>
Regenerate comparison tests with ucd-generate 0.3.1</li>
<li><a
href="ff8590b968"><code>ff8590b</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/unicode-ident/issues/35">#35</a>
from dtolnay/latest</li>
<li><a
href="6a0743712f"><code>6a07437</code></a>
Update UCD.zip download URL</li>
<li><a
href="83d3bdfe5d"><code>83d3bdf</code></a>
Update actions/checkout@v4 -&gt; v5</li>
<li><a
href="be1614805e"><code>be16148</code></a>
Make .gitattributes match only paths from repo root</li>
<li>Additional commits viewable in <a
href="https://github.com/dtolnay/unicode-ident/compare/1.0.18...1.0.19">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -9225,9 +9225,9 @@ checksum = "ce61d488bcdc9bc8b5d1772c404828b17fc481c0a582b5581e95fb233aef503e"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.18"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
+checksum = "f63a545481291138910575129486daeaf8ac54aee4387fe7906919f7830c7d9d"
 
 [[package]]
 name = "unicode-properties"