Update pytest-cov requirement from ==6.0.* to ==6.1.*

Updates the requirements on [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v6.0.0...v6.1.1)

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

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

Author: dependabot[bot]

requirements-test.txt

@@ -2,6 +2,6 @@ coverage == 7.6.*
 mypy == 1.15.*
 pre-commit == 4.1.*
 pytest == 8.3.*
-pytest-cov == 6.0.*
+pytest-cov == 6.1.*
 requests == 2.32.*
 tox == 4.24.*