Update tox requirement from ~=4.6.3 to ~=4.6.4

[dependabot]

Updates the requirements on tox to permit the latest version.

Release notes

Sourced from tox's releases.

4.6.4

What's Changed

• Ensure tox r -e docs generates the documentation by @​gaborbernat in tox-dev/tox#3047
• [pre-commit.ci] pre-commit autoupdate by @​pre-commit-ci in tox-dev/tox#3051
• Bump pypa/gh-action-pypi-publish from 1.8.6 to 1.8.7 by @​dependabot in tox-dev/tox#3052
• s/setup.cfg/pyproject.toml/ in the development docs by @​sk1p in tox-dev/tox#3058
• Fix hang and zombie process on interrupt (CTRL-C). by @​sk1p in tox-dev/tox#3057

Full Changelog: tox-dev/tox@4.6.3...4.6.4

Changelog

Sourced from tox's changelog.

v4.6.4 (2023-07-06)

Bugfixes - 4.6.4

- Fix hang and zombie process on interrupt (CTRL-C). (:issue:`3056`)
v4.6.3 (2023-06-19)
Bugfixes - 4.6.3

• Ensure that get_requires_for_build_wheel is called before prepare_metadata_for_build_wheel, and get_requires_for_build_editable is called before prepare_metadata_for_build_editable - by :user:abravalheri. (:issue:3043)

Improved Documentation - 4.6.3

- Linked environment variable substitutions docs in
  ``set_env`` and ``pass_env`` config docs. (:issue:`3039`)
v4.6.2 (2023-06-16)
Bugfixes - 4.6.2
- Avoid cache collision between editable wheel build and normal wheel build -- by :user:`f3flight`. (:issue:`3035`)
v4.6.1 (2023-06-15)
No significant changes.
v4.6.0 (2023-06-05)
Features - 4.6.0



Addded --list-dependencies and --no-list-dependencies CLI parameters.
If unspecified, defaults to listing when in CI, but not otherwise. (:issue:3024)

Misc - 4.6.0
- :issue:`3020`
v4.5.1 (2023-05-25)

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</details>

<details>

<summary>Commits</summary>
<ul>

<li><a href="https://github.com/tox-dev/tox/commit/9fcbf1bad397e8b96225ce4e9d3a1fca19616cb4&quot;&gt;&lt;code&gt;9fcbf1b&lt;/code&gt;&lt;/a> release 4.6.4</li>

<li><a href="https://github.com/tox-dev/tox/commit/dea2d009147117190e6231a01a1c5132acf6c8f2&quot;&gt;&lt;code&gt;dea2d00&lt;/code&gt;&lt;/a> Fix hang and zombie process on interrupt (CTRL-C). (<a href="https://github.com/tox-dev/tox/issues/3057&quot;&gt;#3057&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/55c143fe323874b14bbbf843524e6bc7aeabd3b1&quot;&gt;&lt;code&gt;55c143f&lt;/code&gt;&lt;/a> s/setup.cfg/pyproject.toml/ in the development docs (<a href="https://github.com/tox-dev/tox/issues/3058&quot;&gt;#3058&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/2e31a843ff881a70ceb3a9986dd11be69247a0da&quot;&gt;&lt;code&gt;2e31a84&lt;/code&gt;&lt;/a> Bump pypa/gh-action-pypi-publish from 1.8.6 to 1.8.7</li>

<li><a href="https://github.com/tox-dev/tox/commit/d7ce800013c18ebc42b2bd8f821c3656da84232d&quot;&gt;&lt;code&gt;d7ce800&lt;/code&gt;&lt;/a> [pre-commit.ci] pre-commit autoupdate (<a href="https://github.com/tox-dev/tox/issues/3051&quot;&gt;#3051&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/af66165beda328c32952b44eb4798f5c8dbe8567&quot;&gt;&lt;code&gt;af66165&lt;/code&gt;&lt;/a> Ensure tox r -e docs generates the documentation (<a href="https://github.com/tox-dev/tox/issues/3047&quot;&gt;#3047&lt;/a&gt;)&lt;/li>

<li>See full diff in <a href="https://github.com/tox-dev/tox/compare/4.6.3...4.6.4&quot;&gt;compare view</a></li>

</ul>

</details>
<br />


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