Bump pytest-mock from 3.7.0 to 3.8.1

Bumps [pytest-mock](https://github.com/pytest-dev/pytest-mock) from 3.7.0 to 3.8.1.
- [Release notes](https://github.com/pytest-dev/pytest-mock/releases)
- [Changelog](https://github.com/pytest-dev/pytest-mock/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-mock/compare/v3.7.0...v3.8.1)

---
updated-dependencies:
- dependency-name: pytest-mock
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

requirements-dev.txt

@@ -12,7 +12,7 @@ pre-commit==2.19.0
 pytest==7.1.2
 pytest-asyncio==0.18.3
 pytest-cov==3.0.0
-pytest-mock==3.7.0
+pytest-mock==3.8.1
 pytest-random-order==1.0.4
 isort==5.10.1
 # For datetime mocking