build(deps-dev): update pytest-cov requirement from ~4 to ~5

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@v4.0.0...v5.0.0)

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

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

pyproject.toml

@@ -48,7 +48,7 @@ isort = "~5"
 mkdocs-material = "~9"
 mypy = ">=1,<3"
 pytest = "~8"
-pytest-cov = "~4"
+pytest-cov = "~5"
 types-setuptools = "^69.0.0"
 types-requests = "^2.27.30"