Bump simplecov from 0.21.0 to 0.21.2 (#15536)
Bump simplecov from 0.21.0 to 0.21.2 (#15536)

Bumps [simplecov](https://github.com/simplecov-ruby/simplecov) from 0.21.0 to 0.21.2.
- [Release notes](https://github.com/simplecov-ruby/simplecov/releases)
- [Changelog](https://github.com/simplecov-ruby/simplecov/blob/main/CHANGELOG.md)
- [Commits](https://github.com/simplecov-ruby/simplecov/compare/v0.21.0...v0.21.2)

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

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
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