Bump cirrus-actions/rebase from 1.4 to 1.5
Bumps [cirrus-actions/rebase](https://github.com/cirrus-actions/rebase) from 1.4 to 1.5.
- [Release notes](https://github.com/cirrus-actions/rebase/releases)
- [Commits](https://github.com/cirrus-actions/rebase/compare/1.4...1.5)
Signed-off-by: dependabot[bot] <support@github.com>