Bumps [tox](https://github.com/tox-dev/tox) from 4.55.1 to 4.56.0. <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>v4.56.0</h2>  <h2>What's Changed</h2> <ul> <li>Fix type errors flagged by ty 0.0.43 by <a href="https://github.com/gaborbernat"><code>@gaborbernat</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3952">tox-dev/tox#3952</a></li> <li>Drop obsolete ty: ignore directives by <a href="https://github.com/gaborbernat"><code>@gaborbernat</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3957">tox-dev/tox#3957</a></li> <li>docs: Use double backquotes for git command in <code>development.rst</code> by <a href="https://github.com/mushitoriami"><code>@mushitoriami</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3961">tox-dev/tox#3961</a></li> <li>docs: Fix indent misalignment in <code>reference/config.rst</code> by <a href="https://github.com/mushitoriami"><code>@mushitoriami</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3962">tox-dev/tox#3962</a></li> <li>docs: replace <a href="http://tox.readthedocs.org">http://tox.readthedocs.org</a> with <a href="https://tox.wiki">https://tox.wiki</a> by <a href="https://github.com/TejasAmle"><code>@TejasAmle</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3963">tox-dev/tox#3963</a></li> <li>🐛 fix(config): restore skip_missing_interpreters default to False by <a href="https://github.com/gaborbernat"><code>@gaborbernat</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3966">tox-dev/tox#3966</a></li> <li>✨ feat(virtualenv): auto-pin virtualenv for end-of-life Python by <a href="https://github.com/gaborbernat"><code>@gaborbernat</code></a> in <a href="https://redirect.github.com/tox-dev/tox/pull/3967">tox-dev/tox#3967</a></li> </ul> <h2>New Contributors</h2> <ul> <li><a href="https://github.com/TejasAmle"><code>@TejasAmle</code></a> made their first contribution in <a href="https://redirect.github.com/tox-dev/tox/pull/3963">tox-dev/tox#3963</a></li> </ul> <p><strong>Full Changelog</strong>: <a href="https://github.com/tox-dev/tox/compare/4.55.1...4.56.0">https://github.com/tox-dev/tox/compare/4.55.1...4.56.0</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> <h1>Features - 4.56.0</h1> <ul> <li>Derive :ref:<code>virtualenv_spec</code> automatically: when an environment targets a Python version the installed :pypi:<code>virtualenv</code> can no longer create (e.g. <code>py38</code> with virtualenv <code>21.5+</code>), tox now pins the newest virtualenv that still supports it and bootstraps it for that environment only. The downgrade happens only when every <code>base_python</code> candidate is unsupported, so environments targeting current interpreters are unaffected. This fixes <code>py38</code> (and other end-of-life interpreters) being silently skipped after a virtualenv upgrade - by :user:<code>gaborbernat</code>. (:issue:<code>3965</code>) (:issue:<code>3965</code>)</li> </ul> <h1>Bug fixes - 4.56.0</h1> <ul> <li>The default value of <code>skip_missing_interpreters</code> changed from <code>True</code> to <code>False</code> — missing interpreters now fail the run by default, matching tox 3 behavior. The tox 4 rewrite unintentionally changed this default. To restore the previous (incorrect) behavior, set <code>skip_missing_interpreters = true</code> in your tox configuration or pass <code>--skip-missing-interpreters</code> on the command line. (:issue:<code>3965</code>)</li> </ul> <h1>Improved documentation - 4.56.0</h1> <ul> <li>Fix nested list items being rendered with continued numbering instead of as sub-items in <code>development.rst</code>, <code>onboarding.rst</code> and <code>explanation.rst</code>. (:issue:<code>3960</code>)</li> <li>Replace stale <code>http://tox.readthedocs.org</code> URL with <code>https://tox.wiki</code> in <code>pyproject.toml</code> (<code>Homepage</code>), <code>.github/CONTRIBUTING.md</code>, and <code>.github/PULL_REQUEST_TEMPLATE.md</code>. (:issue:<code>3963</code>)</li> </ul> <hr /> <p>v4.55.1 (2026-06-03)</p> <hr /> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/tox-dev/tox/commit/f3a626a016c96206a5306ccd73f08eb0e83e4abc"><code>f3a626a</code></a> release 4.56.0</li> <li><a href="https://github.com/tox-dev/tox/commit/140733c12949e4f00b4fe9d3acccee31a2c8367c"><code>140733c</code></a> ✨ feat(virtualenv): auto-pin virtualenv for end-of-life Python (<a href="https://redirect.github.com/tox-dev/tox/issues/3967">#3967</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/bfbc87656a8a0b97fffbab4796660077999971da"><code>bfbc876</code></a> 🐛 fix(config): restore skip_missing_interpreters default to False (<a href="https://redirect.github.com/tox-dev/tox/issues/3966">#3966</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/8ba8075acd45f336347b0133eae7d69af4aab0cd"><code>8ba8075</code></a> [pre-commit.ci] pre-commit autoupdate (<a href="https://redirect.github.com/tox-dev/tox/issues/3964">#3964</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/e9d06b0aa8db43e7c3b3b3730be272febe405ec7"><code>e9d06b0</code></a> docs: replace <a href="http://tox.readthedocs.org">http://tox.readthedocs.org</a> with <a href="https://tox.wiki">https://tox.wiki</a> (<a href="https://redirect.github.com/tox-dev/tox/issues/3963">#3963</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/94f5a6b65285b9082b3bef0f47c5d41560da4dbc"><code>94f5a6b</code></a> docs: Fix indent misalignment in <code>reference/config.rst</code> (<a href="https://redirect.github.com/tox-dev/tox/issues/3962">#3962</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/d43df676b0551dedf31c7a8a3643ca66fc436c34"><code>d43df67</code></a> docs: Use double backquotes for git command in <code>development.rst</code> (<a href="https://redirect.github.com/tox-dev/tox/issues/3961">#3961</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/503be811f2bc52e94d971c1173f461d4b9266b1d"><code>503be81</code></a> [pre-commit.ci] pre-commit autoupdate (<a href="https://redirect.github.com/tox-dev/tox/issues/3958">#3958</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/2ec88817bf424febd4ea173a21b6091ec9e21ca3"><code>2ec8881</code></a> Drop obsolete ty: ignore directives (<a href="https://redirect.github.com/tox-dev/tox/issues/3957">#3957</a>)</li> <li><a href="https://github.com/tox-dev/tox/commit/06f87acbc4b44fb1d8a093948aa3a4b5ff468678"><code>06f87ac</code></a> build(deps): bump actions/checkout from 6.0.2 to 6.0.3 (<a href="https://redirect.github.com/tox-dev/tox/issues/3954">#3954</a>)</li> <li>Additional commits viewable in <a href="https://github.com/tox-dev/tox/compare/4.55.1...4.56.0">compare view</a></li> </ul> </details> <br />
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 [tool.poetry.group.tests.dependencies]
 pytest = "^9.1.1"
 pytest-cov = "^7.1.0"
 -tox = "^4.55.1"
 +tox = "^4.56.0"
 tox-gh-actions = "^3.5.0"