Bump coverage from 7.3.2 to 7.3.3

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.3.2 to 7.3.3.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.3.2...7.3.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements/testing.txt

@@ -1,6 +1,6 @@
 -r base.txt
 
-coverage==7.3.2
+coverage==7.3.3
 pytest-django==4.6.0
 pytest-xdist==3.5.0
 pytest-cov==4.1.0