Update tox requirement from ==4.15.* to ==4.18.*

[dependabot]

Updates the requirements on tox to permit the latest version.

Release notes

Sourced from tox's releases.

4.18.0

What's Changed

• Fix #3278 - Boost temporary directories cleanup in tests by @​ziima in tox-dev/tox#3323
• Fix absolute base python paths conflicting by @​gaborbernat in tox-dev/tox#3325
• Fix #3318 - Suppress spinner in parallel runs in CI by @​ziima in tox-dev/tox#3321

Full Changelog: tox-dev/tox@4.17.1...4.18.0

Changelog

Sourced from tox's changelog.

v4.18.0 (2024-08-13)

Features - 4.18.0

- Suppress spinner in parallel runs in CI - by :user:`ziima`. (:issue:`3318`)
Bugfixes - 4.18.0

• Boost temporary directories cleanup in tests - by :user:ziima. (:issue:3278)
• Fix absolute base python paths conflicting - by :user:gaborbernat. (:issue:3325)

v4.17.1 (2024-08-07)

Bugfixes - 4.17.1

- Support for running ``-e <major>.<minor>`` has been lost, fixing it - by :user:`gaborbernat`. (:issue:`2849`)
- ``base_python`` now accepts absolute paths to interpreter executable - by :user:`paveldikov`. (:issue:`3191`)
v4.17.0 (2024-08-05)
Features - 4.17.0

• Add graalpy prefix as a supported base python (:issue:3312)
• Add :ref:on_platform core configuration holding the tox platform and do not install package when exec an environment
  • by :user:gaborbernat. (:issue:3315)

Bugfixes - 4.17.0

- Add table with default environment variables per OS (:issue:`2753`)
v4.16.0 (2024-07-02)
Bugfixes - 4.16.0

• • Add windir to the default list of Windows pass_env environment variables. - by :user:kurtmckee (:issue:3302)

Improved Documentation - 4.16.0

- - Fix typo in configuration example and fix broken link to code style guide. - by :user:`srenfo` (:issue:`3297`)
v4.15.1 (2024-06-05)
Features - 4.15.1
- Fix ``skip_missing_interpreters`` option for ``package = wheel`` (:issue:`3269`)
</tr></table> 
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</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>

<li><a href="https://github.com/tox-dev/tox/commit/ea72694813a34573f75cbbe284792c4fa96c73c2&quot;&gt;&lt;code&gt;ea72694&lt;/code&gt;&lt;/a> release 4.18.0</li>

<li><a href="https://github.com/tox-dev/tox/commit/3b3628d451111ffc87f009a82eb65b53070377ec&quot;&gt;&lt;code&gt;3b3628d&lt;/code&gt;&lt;/a> Fix <a href="https://redirect.github.com/tox-dev/tox/issues/3318&quot;&gt;#3318&lt;/a> - Suppress spinner in parallel runs in CI (<a href="https://redirect.github.com/tox-dev/tox/issues/3321&quot;&gt;#3321&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/1ee4a3335b1195c85b2fe0db120355dd50324f79&quot;&gt;&lt;code&gt;1ee4a33&lt;/code&gt;&lt;/a> Fix absolute base python paths conflicting (<a href="https://redirect.github.com/tox-dev/tox/issues/3325&quot;&gt;#3325&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/add99edff0ac34520d637d0ce60f8902b1a95b55&quot;&gt;&lt;code&gt;add99ed&lt;/code&gt;&lt;/a> Fix <a href="https://redirect.github.com/tox-dev/tox/issues/3278&quot;&gt;#3278&lt;/a> - Boost temporary directories cleanup in tests (<a href="https://redirect.github.com/tox-dev/tox/issues/3323&quot;&gt;#3323&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/352a3dd778fa9ecb1ddb339c37536a79fef1c121&quot;&gt;&lt;code&gt;352a3dd&lt;/code&gt;&lt;/a> release 4.17.1</li>

<li><a href="https://github.com/tox-dev/tox/commit/fafce99fcb3d9943a10b219c16de299a82e8d491&quot;&gt;&lt;code&gt;fafce99&lt;/code&gt;&lt;/a> fix(tox_env.python): do not process absolute paths to interpreter as PythonSp...</li>

<li><a href="https://github.com/tox-dev/tox/commit/fdc9eb0355f3f58ca700147dc15e4c6894595bdf&quot;&gt;&lt;code&gt;fdc9eb0&lt;/code&gt;&lt;/a> Restore limited &lt;major&gt;.&lt;minor&gt; environment name support (<a href="https://redirect.github.com/tox-dev/tox/issues/3319&quot;&gt;#3319&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/2f7c60ec71d47f4099394af11999a840bc97c9a9&quot;&gt;&lt;code&gt;2f7c60e&lt;/code&gt;&lt;/a> release 4.17.0</li>

<li><a href="https://github.com/tox-dev/tox/commit/5425133459e9c0194c536eac332c06178ac0700e&quot;&gt;&lt;code&gt;5425133&lt;/code&gt;&lt;/a> Add on platform constat to core (<a href="https://redirect.github.com/tox-dev/tox/issues/3315&quot;&gt;#3315&lt;/a&gt;)&lt;/li>

<li><a href="https://github.com/tox-dev/tox/commit/2cf190ae5acc83488a9daef45e51cf964190e66d&quot;&gt;&lt;code&gt;2cf190a&lt;/code&gt;&lt;/a> [pre-commit.ci] pre-commit autoupdate (<a href="https://redirect.github.com/tox-dev/tox/issues/3306&quot;&gt;#3306&lt;/a&gt;)&lt;/li>

<li>Additional commits viewable in <a href="https://github.com/tox-dev/tox/compare/4.15.0...4.18.0&quot;&gt;compare view</a></li>

</ul>

</details>
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[dependabot]

Superseded by #108.