Bump pytest-cov from 3.0.0 to 4.1.0 (#335)

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 3.0.0 to 4.1.0.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v3.0.0...v4.1.0)

---
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>

requirements-test.txt

@@ -2,7 +2,7 @@ img2dataset
 black==22.3.0
 mypy==1.8.0
 pylint==2.13.4
-pytest-cov==3.0.0
+pytest-cov==4.1.0
 pytest-xdist==2.5.0
 pytest==7.0.1
 types-setuptools