Update pytest-cov requirement from ~=4.1.0 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@v4.1.0...v6.0.0)

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

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

pyproject.toml

@@ -122,7 +122,7 @@ network_modeling = [
 test = [
     'coverage~=7.6.4',
     'mock~=5.1.0',
-    'pytest-cov~=4.1.0',
+    'pytest-cov~=6.0.0',
     'pytest-sugar~=1.0.0',
     'pytest~=8.3.3',
     'py~=1.11.0',