⬆️ Bump virtualenv from 20.16.5 to 20.16.6 (#106)

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.16.5 to
20.16.6.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst">virtualenv's
changelog</a>.</em></p>
<blockquote>
<h2>v20.16.6 (2022-10-25)</h2>
<p>Features - 20.16.6</p>
<pre><code>- Drop unneeded shims for PyPy3 directory structure
(`[#2426](pypa/virtualenv#2426)
&lt;https://github.com/pypa/virtualenv/issues/2426&gt;`_)
<p>Bugfixes - 20.16.6
</code></pre></p>
<ul>
<li>Fix selected scheme on debian derivatives for python 3.10 when
<code>python3-distutils</code> is not installed or the <code>venv</code>
scheme is not avaiable - by :user:<code>asottile</code>.
(<code>[#2350](pypa/virtualenv#2350)
&lt;https://github.com/pypa/virtualenv/issues/2350&gt;</code>_)</li>
<li>Allow the test suite to pass even with the original C shell (rather
than <code>tcsh</code>) - by :user:<code>kulikjak</code>.
(<code>[#2418](pypa/virtualenv#2418)
&lt;https://github.com/pypa/virtualenv/issues/2418&gt;</code>_)</li>
<li>Fix fallback handling of downloading wheels for bundled packages -
by :user:<code>schaap</code>.
(<code>[#2429](pypa/virtualenv#2429)
&lt;https://github.com/pypa/virtualenv/issues/2429&gt;</code>_)</li>
<li>Upgrade embedded setuptools to <code>65.5.0</code> from
<code>65.3.0</code> and pip to <code>22.3</code> from
<code>22.2.2</code> - by :user:<code>gaborbernat</code>.
(<code>[#2434](pypa/virtualenv#2434)
&lt;https://github.com/pypa/virtualenv/issues/2434&gt;</code>_)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pypa/virtualenv/commit/26f68e205dfbe36c47fdd1886b0c0060024dbeec"><code>26f68e2</code></a>
release 20.16.6</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/b4564569171628ee839e14853a00f296686cae6a"><code>b456456</code></a>
Upgrade pip and setuptools (<a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2434">#2434</a>)</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/3cff34f7dc46d9ad147a3d70df31e75cab77612d"><code>3cff34f</code></a>
Remove outdated PyPy stdlib overrides (<a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2426">#2426</a>)</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/ae2594c5a822f62964f2ccef7832c26306bc66b1"><code>ae2594c</code></a>
Fix test_csh when running with the original csh (<a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2418">#2418</a>)</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/cdf4225c689150010af8da1cc913e8f32bee06d2"><code>cdf4225</code></a>
Allow empty string as version for <code>find_compatible_in_house</code>
(<a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2430">#2430</a>)</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/3ed75b25cc0c318fc789938bf6bad9c8326da739"><code>3ed75b2</code></a>
[pre-commit.ci] pre-commit autoupdate (<a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2423">#2423</a>)</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/445a68dffa7ba5c0af3b02ec0545b760cd8c04ba"><code>445a68d</code></a>
fix building python3.10 virtualenvs on debian derivatives (<a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2415">#2415</a>)</li>
<li><a
href="https://github.com/pypa/virtualenv/commit/56003ce62101c3d2cfe1a8eb82ef7defbe0d138f"><code>56003ce</code></a>
Merge pull request <a
href="https://github-redirect.dependabot.com/pypa/virtualenv/issues/2413">#2413</a>
from pypa/release-20.16.5</li>
<li>See full diff in <a
href="https://github.com/pypa/virtualenv/compare/20.16.5...20.16.6">compare
view</a></li>
</ul>
</details>
<br />


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</details>

requirements.txt

@@ -299,7 +299,7 @@ unidecode==1.3.6
     # via sphinx-autoapi
 urllib3==1.26.12
     # via requests
-virtualenv==20.16.5
+virtualenv==20.16.6
     # via pre-commit
 wcwidth==0.2.5
     # via prompt-toolkit