Bump coverage from 6.4.1 to 6.4.2 (#1587)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 6.4.1 to 6.4.2.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@6.4.1...6.4.2)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -22,7 +22,7 @@ types-click==7.1.8
 types-pyyaml==6.0.9
 trustme==0.9.0
 cryptography==37.0.4
-coverage==6.4.1
+coverage==6.4.2
 coverage-conditional-plugin==0.5.0
 httpx==0.23.0
 watchgod==0.8.2