Bump coverage from 7.6.1 to 7.6.3 (#942)

Bumps [coverage](https:/nedbat/coveragepy) from 7.6.1 to 7.6.3.
- [Release notes](https:/nedbat/coveragepy/releases)
- [Changelog](https:/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.1...7.6.3)

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

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