Bump pytest-mock from 3.14.1 to 3.15.0 (#323)

Bumps [pytest-mock](https://github.com/pytest-dev/pytest-mock) from 3.14.1 to 3.15.0.
- [Release notes](https://github.com/pytest-dev/pytest-mock/releases)
- [Changelog](https://github.com/pytest-dev/pytest-mock/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-mock@v3.14.1...v3.15.0)

---
updated-dependencies:
- dependency-name: pytest-mock
  dependency-version: 3.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]