Bump coverage from 7.2.7 to 7.4.0

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.2.7 to 7.4.0.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.2.7...7.4.0)

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

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

requirements/coverage.txt

@@ -1 +1 @@
-coverage==7.2.7
+coverage==7.4.0