Bump pytest-cov from 6.1.0 to 6.1.1 in /requirements

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 6.1.0 to 6.1.1.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.1.0...v6.1.1)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/test.txt

@@ -2,6 +2,6 @@ gitpython==3.1.44
 packaging==24.2
 pytest==8.3.5
 pytest-xdist==3.6.1
-pytest-cov==6.1.0
+pytest-cov==6.1.1
 ruff==0.11.3
 setuptools==78.1.0