build(deps): bump coverage from 6.1.1 to 6.1.2 (#660)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 6.1.1 to 6.1.2.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@6.1.1...6.1.2)

---
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>

Author: dependabot[bot]

requirements-test.txt

@@ -5,7 +5,7 @@ black==21.10b0
 codespell==2.1.0
 
 jsonschema==4.2.1
-coverage==6.1.1
+coverage==6.1.2
 doc8==0.9.1
 
 types-python-dateutil==2.8.2