Bump coverage from 6.4.1 to 6.4.2

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] <[email protected]>

Author: dependabot[bot]

requirements/ci-wheel.txt

@@ -1,6 +1,6 @@
 -r wheel.txt
 
-coverage==6.4.1
+coverage==6.4.2
 pytest-cov==3.0.0
 tox==3.25.1