Chore: (deps): Bump zeebe-io/backport-action from 1.2.0 to 1.3.0 (#6078)

Bumps [zeebe-io/backport-action](https://github.com/zeebe-io/backport-action) from 1.2.0 to 1.3.0.
- [Release notes](https://github.com/zeebe-io/backport-action/releases)
- [Commits](a759fd2d7d...b9f8a0a03e)

---
updated-dependencies:
- dependency-name: zeebe-io/backport-action
  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/back-port.yml

@@ -22,7 +22,7 @@ jobs:
           fetch-depth: 0
 
       - name: Open Backport PR
-        uses: zeebe-io/backport-action@a759fd2d7d3314c9bb57d97a0350a12e878d3c7a
+        uses: zeebe-io/backport-action@b9f8a0a03e4697a60b4daa3a4b3bb054bf90c9bd
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           github_workspace: ${{ github.workspace }}

.github/workflows/issue-commands.yml

@@ -79,7 +79,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Open Backport PR
-        uses: zeebe-io/backport-action@a759fd2d7d3314c9bb57d97a0350a12e878d3c7a
+        uses: zeebe-io/backport-action@b9f8a0a03e4697a60b4daa3a4b3bb054bf90c9bd
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           github_workspace: ${{ github.workspace }}