Bump OpenCover from 4.7.1204 to 4.7.1221 in /src (#783)
Bump OpenCover from 4.7.1204 to 4.7.1221 in /src (#783)

Bumps [OpenCover](https://github.com/opencover/opencover) from 4.7.1204 to 4.7.1221.
- [Release notes](https://github.com/opencover/opencover/releases)
- [Changelog](https://github.com/OpenCover/opencover/blob/master/ReleaseNotes.tmp)
- [Commits](https://github.com/opencover/opencover/compare/4.7.1204...4.7.1221)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
dpvreony/Dhgms.AspNetCoreContrib,dpvreony/Dhgms.AspNetCoreContrib,dpvreony/Dhgms.AspNetCoreContrib