Keep workflows alive for up to date base images

Author: malde

.github/workflows/keepalive.yml

@@ -0,0 +1,15 @@
+name: Keep Workflow
+
+on:
+  schedule:
+    - cron: "0 0 1 * *" # every 1st of the month
+
+jobs:
+  keepalive-job:
+    name: Keepalive Workflow
+    runs-on: ubuntu-latest
+    permissions:
+      actions: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gautamkrishnar/keepalive-workflow@v2