build(deps-dev): bump pytest-cov from 5.0.0 to 6.0.0 in /packages

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 5.0.0 to 6.0.0.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v5.0.0...v6.0.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

packages/requirements-dev.txt

@@ -65,7 +65,7 @@ pylint-django==2.6.1 ; python_version >= "3.9" and python_version < "4.0"
 pylint-plugin-utils==0.8.2 ; python_version >= "3.9" and python_version < "4.0"
 pylint==3.3.3 ; python_version >= "3.9" and python_version < "4.0"
 pyproject-api==1.8.0 ; python_version >= "3.9" and python_version < "4.0"
-pytest-cov==5.0.0 ; python_version >= "3.9" and python_version < "4.0"
+pytest-cov==6.0.0 ; python_version >= "3.9" and python_version < "4.0"
 pytest-django==4.9.0 ; python_version >= "3.9" and python_version < "4.0"
 pytest==8.3.4 ; python_version >= "3.9" and python_version < "4.0"
 python-gitlab==4.13.0 ; python_version >= "3.9" and python_version < "4.0"