Bump coverage from 6.4 to 6.4.1

Bumps [coverage](https://github.com/nedbat/coveragepy) from 6.4 to 6.4.1.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@6.4...6.4.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -14,7 +14,7 @@ cffi==1.15.0
 cfgv==3.3.1
 charset-normalizer==2.0.12
 click==8.1.3
-coverage==6.4
+coverage==6.4.1
 cryptography==36.0.2
 Deprecated==1.2.13
 distlib==0.3.4