chore(deps): bump channels from 4.1.0 to 4.2.2 in /backend (#190)

Bumps [channels](https://github.com/django/channels) from 4.1.0 to
4.2.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/django/channels/blob/main/CHANGELOG.txt">channels's
changelog</a>.</em></p>
<blockquote>
<h2>4.2.2 (2025-03-30)</h2>
<ul>
<li>
<p>Added fallbacks for old valid channel/group name checks.</p>
<p>These were renamed in 4.2.1 but (as internal methods) without
deprecation.
They are restored (and deprecated) here to allow updating channel layers
using them.</p>
</li>
</ul>
<h2>4.2.1 (2025-03-29)</h2>
<p>Channels 4.2.1 primarily updates the metadata for supported Python
and Django
versions.</p>
<ul>
<li>
<p>Added official support for Django 5.2 LTS.</p>
</li>
<li>
<p>Added official support for Python 3.13.</p>
</li>
<li>
<p>Added a warning for the length of the channel layer group names.</p>
</li>
</ul>
<p>See also the <code>Version 4.2.1 release notes
&lt;https://channels.readthedocs.io/en/latest/releases/4.2.1.html&gt;</code>_
in the docs.</p>
<h2>4.2.0 (2024-11-15)</h2>
<p>Channels 4.2 introduces a couple of major but backwards-compatible
changes, including most notably enhanced async suppport and fixing
a long-standing bug where tests would try and close db connections
and erroneously fail.</p>
<p>There are a number of other small bugfixes. Please ensure to review
the
<code>Version 4.2.0 release notes
&lt;https://channels.readthedocs.io/en/latest/releases/4.2.0.html&gt;</code>_
for full
details.</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/django/channels/commit/fffced551b7283037071807487a2a7da0b3e827d"><code>fffced5</code></a>
Version 4.2.2.</li>
<li><a
href="https://github.com/django/channels/commit/cd6e790bf8bf40c7087bf15a85cdf867f2ed7baa"><code>cd6e790</code></a>
Added fallbacks for old valid channel/group name checks.</li>
<li><a
href="https://github.com/django/channels/commit/81c61c268b575455d6cd06ec3e0196d20befe8ff"><code>81c61c2</code></a>
Version 4.2.1. (<a
href="https://redirect.github.com/django/channels/issues/2143">#2143</a>)</li>
<li><a
href="https://github.com/django/channels/commit/16142265c5ecd6711be1f39891737e8b94c95bdf"><code>1614226</code></a>
fix aclose_old_connections reference in docs</li>
<li><a
href="https://github.com/django/channels/commit/56b13438d29877fab4a274c2bb5d9a8c70af4505"><code>56b1343</code></a>
Fix typo in docs</li>
<li><a
href="https://github.com/django/channels/commit/816d9bc9a80b7efd406ae869e8522b58f7b3bf46"><code>816d9bc</code></a>
Add missing parenthesis</li>
<li><a
href="https://github.com/django/channels/commit/a144b4b8881a93faa567a6bdf2d7f518f4c16cd2"><code>a144b4b</code></a>
Add warning for the length of the group name (<a
href="https://redirect.github.com/django/channels/issues/2122">#2122</a>)</li>
<li><a
href="https://github.com/django/channels/commit/b502c73ea4c167daf18ebf1e08193fa91782c53f"><code>b502c73</code></a>
Updated tox after Django 5.2a1. (<a
href="https://redirect.github.com/django/channels/issues/2127">#2127</a>)</li>
<li><a
href="https://github.com/django/channels/commit/3f8991cc5e82dacc0537376ce8474a29f0039578"><code>3f8991c</code></a>
added channels-valkey to community docs. (<a
href="https://redirect.github.com/django/channels/issues/2126">#2126</a>)</li>
<li><a
href="https://github.com/django/channels/commit/76495edd94c5973823e8f39d35effee1988f704a"><code>76495ed</code></a>
Added support for Python 3.13. (<a
href="https://redirect.github.com/django/channels/issues/2117">#2117</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/django/channels/compare/4.1.0...4.2.2">compare
view</a></li>
</ul>
</details>
<br />


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backend/requirements.txt

@@ -15,7 +15,7 @@ requests~=2.32.3
 beautifulsoup4~=4.13.4
 django-cors-headers~=4.7.0
 djangorestframework-api-key~=3.0.0
-channels==4.1.0
+channels==4.2.2
 channels-redis==4.2.1
 djangochannelsrestframework==1.3.0
 django-health-check~=3.18.3