Bump html from 0.15.0 to 0.15.4 in /lib/web_ui (#45819)

Bumps [html](https://github.com/dart-lang/html) from 0.15.0 to 0.15.4.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/dart-lang/html/blob/main/CHANGELOG.md">html's changelog</a>.</em></p>
<blockquote>
<h2>0.15.4</h2>
<ul>
<li>Widen the dependency on <code>package:csslib</code>.</li>
<li>Require Dart <code>2.19</code>.</li>
</ul>
<h2>0.15.3</h2>
<ul>
<li>Added package topics to the pubspec file.</li>
</ul>
<h2>0.15.2</h2>
<ul>
<li>Add additional types at the API boundary (in <code>lib/parser.dart</code> and others).</li>
<li>Adopted the <code>package:dart_flutter_team_lints</code> linting rules.</li>
<li>Fixed an issue with <code>querySelector</code> where it would fail in some cases with
descendant or sibling combinators (<a href="https://redirect.github.com/dart-lang/html/issues/157">#157</a>).</li>
<li>Add an API example in <code>example/</code>.</li>
</ul>
<h2>0.15.1</h2>
<ul>
<li>Move <code>htmlSerializeEscape</code> to its own library,
<code>package:html/html_escape.dart</code>, which is exported from
<code>package:html/dom_parsing.dart</code>.</li>
<li>Use more non-growable lists, and type annotations on List literals.</li>
<li>Switch analysis option <code>implicit-casts: false</code> to <code>strict-casts: true</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/dart-lang/html/commit/b3b820bc36ed17673268360d8b569bdc66c22123"><code>b3b820b</code></a> widen the dependency on 'package:csslib' (<a href="https://redirect.github.com/dart-lang/html/issues/217">#217</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/92eacabadf40aa24c8f4289682ef2822c5d7e414"><code>92eacab</code></a> blast_repo fixes (<a href="https://redirect.github.com/dart-lang/html/issues/216">#216</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/593d6f67ef93477312d85c403f5a9b5928467f9c"><code>593d6f6</code></a> Bump actions/checkout from 3.5.0 to 3.5.2 (<a href="https://redirect.github.com/dart-lang/html/issues/214">#214</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/5d87dc8a0638b9f494e7044dc78bd4520341ab6d"><code>5d87dc8</code></a> added package topics to the pubspec file (<a href="https://redirect.github.com/dart-lang/html/issues/215">#215</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/0438b26b90be4d491ec55586b6b841f41e4fbf1e"><code>0438b26</code></a> Dart 3 compatibility: turn classes into mixins (<a href="https://redirect.github.com/dart-lang/html/issues/208">#208</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/57b747d7052aba08901adb366ffb2836facaa04d"><code>57b747d</code></a> Bump dart-lang/setup-dart from 1.4.0 to 1.5.0 (<a href="https://redirect.github.com/dart-lang/html/issues/209">#209</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/51c9910beca8c91772ae2ff1e970b6a1e7c0cfcb"><code>51c9910</code></a> Bump actions/checkout from 3.3.0 to 3.5.0 (<a href="https://redirect.github.com/dart-lang/html/issues/210">#210</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/08643e9e2baac0f20ce4a3b8baed820107972270"><code>08643e9</code></a> prep for publishing 0.15.2 (<a href="https://redirect.github.com/dart-lang/html/issues/205">#205</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/0b8025c16e1e5a5bcd451fb3a81cd98df218dcd4"><code>0b8025c</code></a> add an api example (<a href="https://redirect.github.com/dart-lang/html/issues/204">#204</a>)</li>
<li><a href="https://github.com/dart-lang/html/commit/f118e004dfe68a4d101246106e775c0231efb79a"><code>f118e00</code></a> lint with dart_flutter_team_lints (<a href="https://redirect.github.com/dart-lang/html/issues/201">#201</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/dart-lang/html/compare/0.15.0...v0.15.4">compare view</a></li>
</ul>
</details>
<br />

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Author: dependabot[bot]

lib/web_ui/pubspec.yaml

@@ -23,7 +23,7 @@ dev_dependencies:
   async: any
   convert: any
   crypto: any
-  html: 0.15.0
+  html: 0.15.4
   http: 1.1.0
   http_multi_server: any
   image: 3.0.1