chore(deps-dev): bump the pytest group with 3 updates

Bumps the pytest group with 3 updates: [pytest](https://github.com/pytest-dev/pytest), [pytest-cov](https://github.com/pytest-dev/pytest-cov) and [pytest-mock](https://github.com/pytest-dev/pytest-mock).


Updates `pytest` from 8.4.1 to 8.4.2
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/8.4.1...8.4.2)

Updates `pytest-cov` from 6.2.1 to 6.3.0
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-cov/compare/v6.2.1...v6.3.0)

Updates `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](https://github.com/pytest-dev/pytest-mock/compare/v3.14.1...v3.15.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-version: 8.4.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: pytest
- dependency-name: pytest-cov
  dependency-version: 6.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pytest
- dependency-name: pytest-mock
  dependency-version: 3.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: pytest
...

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

requirements-dev.txt

@@ -9,10 +9,10 @@
 ruff==0.12.12
 mypy==1.17.1
 pre-commit==4.3.0
-pytest==8.4.1
+pytest==8.4.2
 pytest-asyncio==1.1.0
-pytest-cov==6.2.1
-pytest-mock==3.14.1
+pytest-cov==6.3.0
+pytest-mock==3.15.0
 pytest-random-order==1.2.0
 pytest-timeout==2.4.0
 pytest-xdist==3.8.0