🐛 alter default backport pull title (#28)

Author: m-brophy

.github/workflows/cherry-pick.yaml

@@ -23,8 +23,8 @@ jobs:
             const labels = issue.labels.map(label => label.name);
             console.log(`Labels: ${labels}`);
 
-            const branches = labels.filter(label => label.startsWith('cherry-pick/'))
-              .map(label => label.substr(12));
+            const branches = labels.filter(label => label.startsWith('backport '))
+              .map(label => label.substr(9));
             console.log(`Branches: ${branches}`);
 
             return branches
@@ -51,13 +51,7 @@ jobs:
           application_private_key: ${{ secrets.TRUSTIFICATION_BOT_KEY }}
 
       - name: Cherry-pick
-        env:
-          GH_TOKEN: ${{ steps.get_workflow_token.outputs.token }}
-        run: |
-          BRANCH_NAME="cherry-pick-pr${{ github.event.number }}-${{ matrix.branch }}"
-          git config --global user.email "noreply@github.com"
-          git config --global user.name "Cherry Picker"
-          git checkout -b ${BRANCH_NAME}
-          git cherry-pick -s ${{ github.sha }}
-          git push origin ${BRANCH_NAME}
-          gh pr create --base ${{ matrix.branch }} --fill
+        uses: korthout/backport-action@v3
+        with:
+          github_token: ${{ steps.get_workflow_token.outputs.token }}
+          pull_title: '${pull_title} [Backport ${target_branch}]'