fix: bump coverage from 6.4.3 to 7.3.1

Bumps [coverage](https://github.com/nedbat/coveragepy) from 6.4.3 to 7.3.1.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@6.4.3...7.3.1)

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

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

requirements-test.txt

@@ -1,5 +1,5 @@
 --requirement requirements.txt
-coverage==6.4.3
+coverage==7.3.1
 packaging==23.1
 pytest==6.2.5
 pytest-cov==3.0.0