chore(deps-dev): bump pytest-cov from 4.0.0 to 4.1.0 in /requirements (#508)

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 4.0.0 to 4.1.0.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v4.0.0...v4.1.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/dev.txt

@@ -1,7 +1,7 @@
 coverage==7.2.5
 flake8==3.3.0; python_version < '3.8'
 flake8==3.8.4; python_version >= '3.8'
-pytest-cov==4.0.0
+pytest-cov==4.1.0
 
 isort>=4.2.5,<5; python_version < '3.8'