Bump coverage from 7.4.0 to 7.4.1

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.4.0 to 7.4.1.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.4.0...7.4.1)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

test_reqs.txt

@@ -1,6 +1,6 @@
 django-treebeard==4.7
 Markdown>=2.6.11,<3
-coverage==7.4.0
+coverage==7.4.1
 importlib-metadata<7.1  # for flake8
 typing_extensions==4.9.0
 zipp==3.17.0  # for flake8