Bump tox from 4.12.1 to 4.13.0 (#90)

Bumps [tox](https://github.com/tox-dev/tox) from 4.12.1 to 4.13.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/tox-dev/tox/releases">tox's
releases</a>.</em></p>
<blockquote>
<h2>4.13.0</h2>
<!-- raw HTML omitted -->
<h2>What's Changed</h2>
<ul>
<li>Document usage of Pytest with Tox as a FAQ entry by <a
href="https://github.com/faph"><code>@​faph</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3192">tox-dev/tox#3192</a></li>
<li>docs/config.rst: State in config directive sections their ini file
sections by <a href="https://github.com/0cjs"><code>@​0cjs</code></a> in
<a
href="https://redirect.github.com/tox-dev/tox/pull/3194">tox-dev/tox#3194</a></li>
<li>.gitignore: Add /tests/demo_pkg_inline/.tox/ by <a
href="https://github.com/0cjs"><code>@​0cjs</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3198">tox-dev/tox#3198</a></li>
<li>docs/development: Summarise important points experienced devs need
to know by <a href="https://github.com/0cjs"><code>@​0cjs</code></a> in
<a
href="https://redirect.github.com/tox-dev/tox/pull/3197">tox-dev/tox#3197</a></li>
<li>Add tests for CliEnv by <a
href="https://github.com/0cjs"><code>@​0cjs</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3204">tox-dev/tox#3204</a></li>
<li>Document how CliEnv works by <a
href="https://github.com/0cjs"><code>@​0cjs</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3206">tox-dev/tox#3206</a></li>
<li>docs/development &quot;Key points&quot;: Two updates and general
improvement by <a href="https://github.com/0cjs"><code>@​0cjs</code></a>
in <a
href="https://redirect.github.com/tox-dev/tox/pull/3205">tox-dev/tox#3205</a></li>
<li>session.env_select.CliEnv: Document and test spaces behaviour by <a
href="https://github.com/0cjs"><code>@​0cjs</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3208">tox-dev/tox#3208</a></li>
<li>config.cli.test_cli_ini: Re-order for clarity (textual moves only)
by <a href="https://github.com/0cjs"><code>@​0cjs</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3209">tox-dev/tox#3209</a></li>
<li>Revert previous &quot;precommit autoupdate (<a
href="https://redirect.github.com/tox-dev/tox/issues/3214">#3214</a>)&quot;
commit; it's broken by <a
href="https://github.com/0cjs"><code>@​0cjs</code></a> in <a
href="https://redirect.github.com/tox-dev/tox/pull/3215">tox-dev/tox#3215</a></li>
<li>Extract packaging virtualenv code to its own class by <a
href="https://github.com/gaborbernat"><code>@​gaborbernat</code></a> in
<a
href="https://redirect.github.com/tox-dev/tox/pull/3221">tox-dev/tox#3221</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/faph"><code>@​faph</code></a> made their
first contribution in <a
href="https://redirect.github.com/tox-dev/tox/pull/3192">tox-dev/tox#3192</a></li>
<li><a href="https://github.com/0cjs"><code>@​0cjs</code></a> made their
first contribution in <a
href="https://redirect.github.com/tox-dev/tox/pull/3194">tox-dev/tox#3194</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/tox-dev/tox/compare/4.12.1...4.13.0">https://github.com/tox-dev/tox/compare/4.12.1...4.13.0</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/tox-dev/tox/blob/main/docs/changelog.rst">tox's
changelog</a>.</em></p>
<blockquote>
<h2>v4.13.0 (2024-02-16)</h2>
<p>Features - 4.13.0</p>
<pre><code>- Extract virtual environment packaging code to its own base
class not tied to ``virtualenv`` - by :user:`gaborbernat`.
(:issue:`3221`)
<p>Improved Documentation - 4.13.0
</code></pre></p>
<ul>
<li>Documented usage of <code>pytest</code> with <code>tox
run-parallel</code> - by :user:<code>faph</code>.
(:issue:<code>3187</code>)</li>
<li>Configuration: state in config directive sections their ini file
sections - by :user:<code>0cjs</code>. (:issue:<code>3194</code>)</li>
<li>Development: summarize important points experienced developers need
to know - by :user:<code>0cjs</code>. (:issue:<code>3197</code>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/tox-dev/tox/commit/ae156e2abe6d07082681bffd3d3c39994c9e5f47"><code>ae156e2</code></a>
release 4.13.0</li>
<li><a
href="https://github.com/tox-dev/tox/commit/fa923ecc4f1babc89fc8e4d0a4fa9639491684d2"><code>fa923ec</code></a>
Extract packaging virtualenv code to its own class (<a
href="https://redirect.github.com/tox-dev/tox/issues/3221">#3221</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/47bcea693845a285c859312904c61d50e8928f0c"><code>47bcea6</code></a>
[pre-commit.ci] pre-commit autoupdate (<a
href="https://redirect.github.com/tox-dev/tox/issues/3217">#3217</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/fb83a3ae3e1e45cce7f2fe86040b8931dca17021"><code>fb83a3a</code></a>
Revert previous &quot;precommit autoupdate (<a
href="https://redirect.github.com/tox-dev/tox/issues/3214">#3214</a>)&quot;
commit; it's broken (<a
href="https://redirect.github.com/tox-dev/tox/issues/3215">#3215</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/3347933a4e3d5cda8f993ffccc3f79b5a01a819c"><code>3347933</code></a>
[pre-commit.ci] pre-commit autoupdate (<a
href="https://redirect.github.com/tox-dev/tox/issues/3214">#3214</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/2bcc3ec98da617dca7ff0720dc13e36336f12c5d"><code>2bcc3ec</code></a>
config.cli.test_cli_ini: Re-order for clarity (textual moves only) (<a
href="https://redirect.github.com/tox-dev/tox/issues/3209">#3209</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/387834a853cf0d57b10f25800798bb6b5fac1b16"><code>387834a</code></a>
session.env_select.CliEnv: Document and test spaces behaviour (<a
href="https://redirect.github.com/tox-dev/tox/issues/3208">#3208</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/47fa093932c8f84546580e1da7a289e12b5adbfb"><code>47fa093</code></a>
docs/development &quot;Key points&quot;: Two updates and general
improvement (<a
href="https://redirect.github.com/tox-dev/tox/issues/3205">#3205</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/1b5b18750ab08e7bb84ab808071485a1440ddaa2"><code>1b5b187</code></a>
Document how CliEnv works (<a
href="https://redirect.github.com/tox-dev/tox/issues/3206">#3206</a>)</li>
<li><a
href="https://github.com/tox-dev/tox/commit/b3eb86a6450de6d2f2dc41d3bbcb0421b2d2e752"><code>b3eb86a</code></a>
Add tests for CliEnv (<a
href="https://redirect.github.com/tox-dev/tox/issues/3204">#3204</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/tox-dev/tox/compare/4.12.1...4.13.0">compare
view</a></li>
</ul>
</details>
<br />


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</details>

pyproject.toml

@@ -86,7 +86,7 @@ optional = true
 coverage = {version = '^7.4.1', extras = ['toml',]}
 pytest = '^8.0.0'
 pytest-cov = '^4.1.0'
-tox = '^4.12.1'
+tox = '^4.13.0'
 tox-gh-actions = '^3.2.0'