only redeploy gitainer when diff exists

.gitea/workflows/reload-act-runner.yaml

@@ -5,7 +5,18 @@ on:
     branches: [main]
 
 jobs:
+  diff:
+    uses: martin/chromart-gitea-actions/.gitea/workflows/diff-output.yaml@main
+    with:
+      repository: ${{ github.repository }}
+      ref: ${{ github.ref }}
+      files: .gitea/workflows/*
+    secrets:
+      token: ${{ github.token }}
+
   deploy-gitainer:
+    needs: diff
+    if: ${{ needs.diff.outputs.is_changed == 'true' }}
     uses: martin/chromart-gitea-actions/.gitea/workflows/gitainer-deploy.yaml@main
     with:
       stack_name: gitea_act_runner