Bump pytest-mock from 3.11.1 to 3.12.0 in /reportsizedeltas/tests

Bumps [pytest-mock](https://github.com/pytest-dev/pytest-mock) from 3.11.1 to 3.12.0.
- [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@v3.11.1...v3.12.0)

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

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

Author: dependabot[bot]

reportsizedeltas/tests/requirements.txt

@@ -1,3 +1,3 @@
 coverage==7.3.2
 pytest==7.4.2
-pytest-mock==3.11.1
+pytest-mock==3.12.0