chore(deps): bump mutmut from 3.5.0 to 3.6.0

Bumps [mutmut](https://github.com/boxed/mutmut) from 3.5.0 to 3.6.0.
- [Changelog](https://github.com/boxed/mutmut/blob/main/HISTORY.rst)
- [Commits](https://github.com/boxed/mutmut/commits)

---
updated-dependencies:
- dependency-name: mutmut
  dependency-version: 3.6.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]