Bump urllib3 from 2.0.3 to 2.0.4 (#420)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.0.3 to 2.0.4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.0.4</h2>
<ul>
<li>Added support for union operators to <code>HTTPHeaderDict</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2254">#2254</a>)</li>
<li>Added <code>BaseHTTPResponse</code> to <code>urllib3.__all__</code>
(<a
href="https://redirect.github.com/urllib3/urllib3/issues/3078">#3078</a>)</li>
<li>Fixed <code>urllib3.connection.HTTPConnection</code> to raise the
<code>http.client.connect</code> audit event to have the same behavior
as the standard library HTTP client (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2757">#2757</a>)</li>
<li>Relied on the standard library for checking hostnames in supported
PyPy releases (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3087">#3087</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.0.4 (2023-07-19)</h1>
<ul>
<li>Added support for union operators to <code>HTTPHeaderDict</code>
(<code>[#2254](urllib3/urllib3#2254)
&lt;https://github.com/urllib3/urllib3/issues/2254&gt;</code>__)</li>
<li>Added <code>BaseHTTPResponse</code> to <code>urllib3.__all__</code>
(<code>[#3078](urllib3/urllib3#3078)
&lt;https://github.com/urllib3/urllib3/issues/3078&gt;</code>__)</li>
<li>Fixed <code>urllib3.connection.HTTPConnection</code> to raise the
<code>http.client.connect</code> audit event to have the same behavior
as the standard library HTTP client
(<code>[#2757](urllib3/urllib3#2757)
&lt;https://github.com/urllib3/urllib3/issues/2757&gt;</code>__)</li>
<li>Relied on the standard library for checking hostnames in supported
PyPy releases
(<code>[#3087](urllib3/urllib3#3087)
&lt;https://github.com/urllib3/urllib3/issues/3087&gt;</code>__)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/c9fa144545eedb5dc4a2cc3f255e95602a1d7db0"><code>c9fa144</code></a>
Release version 2.0.4 (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3084">#3084</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/d40d146765a7f7a899427c8add54de67b4b6599a"><code>d40d146</code></a>
Add Illia to CODEOWNERS</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0a375d19243efb08c9d8a0f3356701ca11ef9791"><code>0a375d1</code></a>
Raise <code>http.client.connect</code> audit events in
<code>HTTPConnection</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2859">#2859</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/c056eb3df6aae4d1dff0365baded46235d413520"><code>c056eb3</code></a>
Bump actions/setup-python from 4.6.0 to 4.7.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/a1c184b298823f13dd34c783d56ea538848282f1"><code>a1c184b</code></a>
Remove warnings filters fixed in pytest 7.4.0 (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3086">#3086</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/609c5464cc9d2673549b651b713e07424517fa85"><code>609c546</code></a>
Add support for union operators to <code>HTTPHeaderDict</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2943">#2943</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/05b21ca5d29764aae60c72e4e3bfceead0f70f95"><code>05b21ca</code></a>
Bump cryptography from 41.0.0 to 41.0.2</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9aa0d4f6cb0d4b34e20fafed4481ac7d785d4969"><code>9aa0d4f</code></a>
Bump cryptography from 39.0.1 to 41.0.0 (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3057">#3057</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/326c4238cbabe85007aa7b1f2e80b880fd01d903"><code>326c423</code></a>
Rely on the standard library for checking hostnames in supported PyPy
releases</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/d0ac08d58511c4121138bd46436076409d21acbf"><code>d0ac08d</code></a>
Bump gh-action-pypi-publish to v1.8.8</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.0.3...2.0.4">compare
view</a></li>
</ul>
</details>
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requirements.txt

@@ -29,7 +29,7 @@ tomli==2.0.1
 tomlkit==0.11.8
 typing_extensions==4.7.1
 ujson==5.8.0
-urllib3==2.0.3
+urllib3==2.0.4
 Werkzeug==2.3.6
 wrapt==1.15.0
 zipp==3.16.2