Bump regex from 2023.12.25 to 2024.4.16 (#58)

Bumps [regex](https://github.com/mrabarnett/mrab-regex) from 2023.12.25
to 2024.4.16.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/mrabarnett/mrab-regex/blob/hg/changelog.txt">regex's
changelog</a>.</em></p>
<blockquote>
<p>Version: 2024.4.16</p>
<pre><code>Git issue 525: segfault when fuzzy matching empty list
</code></pre>
<p>Version: 2023.12.25</p>
<pre><code>Cannot get release notification action in main.yml to work.
Commenting it out for now.
</code></pre>
<p>Version: 2023.12.24</p>
<pre><code>Fixed invalid main.yml.
</code></pre>
<p>Version: 2023.12.23</p>
<pre><code>The escape function no longer escapes \x00. It's not
necessary.
<p>Inline flags can now be turned off and apply to what follows.</p>
<p>Added \R to match line endings.
</code></pre></p>
<p>Version: 2023.10.3</p>
<pre><code>Updated to Unicode 15.1.0.
</code></pre>
<p>Version: 2023.8.8</p>
<pre><code>Git issue 508: Regex doesn't build using CPython main
(3.13.0a0)
Removed usage of _PyBytes_Join and did a little tidying of the code that
makes the result string.
</code></pre>
<p>Version: 2023.6.3</p>
<pre><code>Git issue 498: Conditional negative lookahead inside positive
lookahead fails to match
Conditional node needed an additional member that points to the true
branch.
</code></pre>
<p>Version: 2023.5.5</p>
<pre><code>Removed semicolon after 'else' in 'munge_name'.
</code></pre>
<p>Version: 2023.5.4</p>
<pre><code>Fixed pyproject.toml and setup.py.
</code></pre>
<p>Version: 2023.5.3</p>
<pre><code>pyproject.toml was missing.
</code></pre>
<p>Version: 2023.5.2</p>
<pre><code>Added pyproject.toml.
</code></pre>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/mrabarnett/mrab-regex/commit/9c950f2c25a5b1221a059761c5f90b9ee0f31763"><code>9c950f2</code></a>
Updated changelog.</li>
<li><a
href="https://github.com/mrabarnett/mrab-regex/commit/5d65c8a727eb3e81d5681ec0be84e02af0f9b20b"><code>5d65c8a</code></a>
Git issue 525: segfault when fuzzy matching empty list</li>
<li><a
href="https://github.com/mrabarnett/mrab-regex/commit/4f2ed52b3d73f39541026cf74f7c23106086b0b5"><code>4f2ed52</code></a>
Cannot get release notification action in main.yml to work. Commenting
it out...</li>
<li>See full diff in <a
href="https://github.com/mrabarnett/mrab-regex/compare/2023.12.25...2024.4.16">compare
view</a></li>
</ul>
</details>
<br />


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</details>

requirements.txt

@@ -4,7 +4,7 @@ dblpy==0.4.0
 discord.py==2.3.2
 motor==3.4.0
 pytz==2024.1
-regex==2023.12.25
+regex==2024.4.16
 requests==2.31.0
 Unidecode==1.3.8
 websockets==12.0