Bump dagger.version from 2.27 to 2.28
Bump dagger.version from 2.27 to 2.28

Bumps `dagger.version` from 2.27 to 2.28.

Updates `dagger` from 2.27 to 2.28
- [Release notes](https://github.com/google/dagger/releases)
- [Changelog](https://github.com/google/dagger/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/dagger/compare/dagger-2.27...dagger-2.28)

Updates `dagger-compiler` from 2.27 to 2.28
- [Release notes](https://github.com/google/dagger/releases)
- [Changelog](https://github.com/google/dagger/blob/master/CHANGELOG.md)
- [Commits](https://github.com/google/dagger/compare/dagger-2.27...dagger-2.28)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
RohanNagar/lightning,RohanNagar/lightning