fix: bump tox from 4.15.0 to 4.18.0

Bumps [tox](https://github.com/tox-dev/tox) from 4.15.0 to 4.18.0.
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](tox-dev/tox@4.15.0...4.18.0)

---
updated-dependencies:
- dependency-name: tox
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -119,7 +119,7 @@ dev = [
     "black==24.4.2",    
     "pre-commit>=2.19.0",
     "pytest==7.4.0",
-    "tox==4.15.0",
+    "tox==4.18.0",
     "sphinx<7",
     "sphinx-rtd-theme"
 ]