chore(deps): update dependency tox to v4.18.0 (#12)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [tox](https://github.com/tox-dev/tox)
([changelog](https://tox.wiki/en/latest/changelog.html)) | `==4.17.1` ->
`==4.18.0` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/tox/4.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/tox/4.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/tox/4.17.1/4.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/tox/4.17.1/4.18.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>tox-dev/tox (tox)</summary>

### [`v4.18.0`](https://github.com/tox-dev/tox/releases/tag/4.18.0)

[Compare
Source](https://github.com/tox-dev/tox/compare/4.17.1...4.18.0)

<!-- Release notes generated using configuration in .github/release.yml
at 4.18.0 -->

#### What's Changed

- Fix [#&#8203;3278](https://github.com/tox-dev/tox/issues/3278) -
Boost temporary directories cleanup in tests by
[@&#8203;ziima](https://github.com/ziima) in
[https://github.com/tox-dev/tox/pull/3323](https://github.com/tox-dev/tox/pull/3323)
- Fix absolute base python paths conflicting by
[@&#8203;gaborbernat](https://github.com/gaborbernat) in
[https://github.com/tox-dev/tox/pull/3325](https://github.com/tox-dev/tox/pull/3325)
- Fix [#&#8203;3318](https://github.com/tox-dev/tox/issues/3318) -
Suppress spinner in parallel runs in CI by
[@&#8203;ziima](https://github.com/ziima) in
[https://github.com/tox-dev/tox/pull/3321](https://github.com/tox-dev/tox/pull/3321)

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

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 4am on the first day of the
month" (UTC), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

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.github/requirements.txt

@@ -1,2 +1,2 @@
-tox==4.17.1
+tox==4.18.0
 poetry==1.8.3