chore: use all-contributors-image action for contributors.png

.github/workflows/contributors-png.yml

@@ -5,36 +5,16 @@ on:
     paths:
       - '.all-contributorsrc'
 
+permissions:
+  contents: read
+
 jobs:
   genimage:
     if: github.ref == 'refs/heads/main' && github.repository == 'processing/processing4'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-
-      - name: Install dependencies
-        run: npm install canvas
-
-      - name: Run contributors-png generator
-        run: node utils/contributors-png.js
-
-      - name: Reset all changes except contributors.png
-        run: |
-          git restore --staged .
-          git add contributors.png
-          git checkout -- .
-
-      - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+      - name: Generate contributors image and open PR
+        uses: processing/all-contributors-image@cfb102304bd496071b6003be0bea2ac0b89b4e3a # v0.1.0
         with:
-          commit-message: "Update contributors.png from .all-contributorsrc"
-          branch: update-contributors-png
-          title: "chore: update contributors.png from .all-contributorsrc"
-          body: "This PR updates the contributors.png to reflect changes in .all-contributorsrc"
-          add-paths: contributors.png
           token: ${{ secrets.CONTRIBUTOR_PNG_ACCESS_TOKEN }}
+          base-branch: main