keepalive workflow (#139)

Author: kp-cat

.github/workflows/elixir-ci.yml

@@ -93,3 +93,12 @@ jobs:
       run: mix hex.publish --yes
       env:
         HEX_API_KEY: ${{ secrets.HEX_API_KEY }}
+
+  # Prevent GitHub from suspending your cronjob based triggers due to repository inactivity
+  keepalive:
+    runs-on: ubuntu-latest
+    permissions:
+      actions: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: gautamkrishnar/keepalive-workflow@v2