build(deps): Bump pytest-mock in /testing/plugins_integration (#13744)

Bumps [pytest-mock](https://github.com/pytest-dev/pytest-mock) from 3.15.0 to 3.15.1.
- [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@v3.15.0...v3.15.1)

---
updated-dependencies:
- dependency-name: pytest-mock
  dependency-version: 3.15.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

testing/plugins_integration/requirements.txt

@@ -6,7 +6,7 @@ pytest-cov==7.0.0
 pytest-django==4.11.1
 pytest-flakes==4.0.5
 pytest-html==4.1.1
-pytest-mock==3.15.0
+pytest-mock==3.15.1
 pytest-rerunfailures==16.0.1
 pytest-sugar==1.1.1
 pytest-trio==0.8.0