chore(deps): update dependency tox to v4.18.1 (#20)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [tox](https://redirect.github.com/tox-dev/tox)
([changelog](https://tox.wiki/en/latest/changelog.html)) | `==4.18.0` ->
`==4.18.1` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/tox/4.18.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/tox/4.18.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/tox/4.18.0/4.18.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/tox/4.18.0/4.18.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

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

###
[`v4.18.1`](https://redirect.github.com/tox-dev/tox/releases/tag/4.18.1)

[Compare
Source](https://redirect.github.com/tox-dev/tox/compare/4.18.0...4.18.1)

<!-- Release notes generated using configuration in .github/release.yml
at 4.18.1 -->

#### What's Changed

- Fixup the spec string for sys.executable by
[@&#8203;hroncok](https://redirect.github.com/hroncok) in
[tox-dev/tox#3327
- Fix issue link in changelog by
[@&#8203;schlamar](https://redirect.github.com/schlamar) in
[tox-dev/tox#3332
- Properly document the `tox_env_teardown` hook by
[@&#8203;kemzeb](https://redirect.github.com/kemzeb) in
[tox-dev/tox#3333
- Add 3.13 to CI and bump deps by
[@&#8203;gaborbernat](https://redirect.github.com/gaborbernat) in
[tox-dev/tox#3339

#### New Contributors

- [@&#8203;schlamar](https://redirect.github.com/schlamar) made their
first contribution in
[tox-dev/tox#3332
- [@&#8203;kemzeb](https://redirect.github.com/kemzeb) made their first
contribution in
[tox-dev/tox#3333

**Full Changelog**:
tox-dev/tox@4.18.0...4.18.1

</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

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/luminartech/dev-tools).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC43NC4xIiwidXBkYXRlZEluVmVyIjoiMzguNzQuMSIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6W119-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/requirements.txt

@@ -1,2 +1,2 @@
-tox==4.18.0
+tox==4.18.1
 poetry==1.8.3