Bump cirrus-actions/rebase from 1.5 to 1.6 (#148)

Bumps [cirrus-actions/rebase](https://github.com/cirrus-actions/rebase) from 1.5 to 1.6.
- [Release notes](https://github.com/cirrus-actions/rebase/releases)
- [Commits](cirrus-actions/rebase@1.5...1.6)

---
updated-dependencies:
- dependency-name: cirrus-actions/rebase
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/rebase.yml

@@ -15,6 +15,6 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 0 # otherwise, you will fail to push refs to dest repo
       - name: 🧬 Automatic Rebase
-        uses: cirrus-actions/rebase@1.5
+        uses: cirrus-actions/rebase@1.6
         env:
           GITHUB_TOKEN: ${{ secrets.GH_PAT }}