Bump pytest-cov from 5.0.0 to 6.0.0 (#419)

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:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jack Davies <[email protected]>
Co-authored-by: James Packer <[email protected]>

pyproject.toml

@@ -36,7 +36,7 @@ dependencies = [
 [project.optional-dependencies]
 tests = [
     "pytest==8.3.3",
-    "pytest-cov==5.0.0",
+    "pytest-cov==6.0.0",
     "ansys.platform.instancemanagement>=1.0.2",
     "matplotlib>=3.6.3"
 ]