build(deps): bump coverage from 7.10.5 to 7.10.6 in /requirements (#21135)

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.10.5 to 7.10.6.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](https://github.com/nedbat/coveragepy/compare/7.10.5...7.10.6)

---
updated-dependencies:
- dependency-name: coverage
  dependency-version: 7.10.6
  dependency-type: direct:production
  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>
Co-authored-by: Jirka Borovec <[email protected]>