Bump cirrus-actions/rebase from 1.6 to 1.7 (PowerShell#17843)

Bumps [cirrus-actions/rebase](https://github.com/cirrus-actions/rebase) from 1.6 to 1.7.
- [Release notes](https://github.com/cirrus-actions/rebase/releases)
- [Commits](cirrus-actions/rebase@1.6...1.7)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

.github/workflows/rebase.yml

@@ -27,6 +27,6 @@ jobs:
             body: backport_start_body
           });
     - name: Automatic Rebase
-      uses: cirrus-actions/rebase@1.6
+      uses: cirrus-actions/rebase@1.7
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}