Update pytest-cov requirement from ~=5.0.0 to ~=6.0.0

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@v5.0.0...v6.0.0)

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

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

pyproject.toml

@@ -36,7 +36,7 @@ test = [
     "coverage [toml] ~= 7.6.0",
     "pytest ~= 8.3.1",
     # More pytest plugins at: https://docs.pytest.org/en/latest/reference/plugin_list.html
-    "pytest-cov ~= 5.0.0",
+    "pytest-cov ~= 6.0.0",
     "pytest-github-actions-annotate-failures ~= 0.2.0",
     "pytest-randomly ~= 3.15.0",
 ]