ci(backport): align with readme example

.github/workflows/backport.yml

@@ -1,16 +1,17 @@
-name: Backport labeled merged pull requests
+name: Backport merged pull request
 on:
   pull_request:
     types: [closed]
   issue_comment:
     types: [created]
+permissions:
+  contents: write # so it can comment
+  pull-requests: write # so it can create pull requests
 jobs:
-  build:
-    name: Create backport PRs
+  backport:
+    name: Backport pull request
     runs-on: ubuntu-latest
-    permissions:
-      contents: write # so it can comment
-      pull-requests: write # so it can create pull requests
+
     # Only run when pull request is merged
     # or when a comment containing `/backport` is created
     if: >
@@ -24,18 +25,5 @@ jobs:
       )
     steps:
       - uses: actions/checkout@v3
-      - name: Create backport PRs
-        uses: zeebe-io/backport-action@v0
-        with:
-          # Required
-          # Token to authenticate requests to GitHub
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-
-          # Required
-          # Working directory for the backport action
-          github_workspace: ${{ github.workspace }}
-
-          # Optional
-          # Regex pattern to match github labels
-          # Must contain a capture group for target branchname
-          # label_pattern: ^backport ([^ ]+)$
+      - name: Create backport pull requests
+        uses: zeebe-io/backport-action@v1-rc1