Merge pull request #2226 from nginx-proxy/dependabot-actions

ci: maintain GitHub Actions with Dependabot

.github/dependabot.yml

@@ -15,7 +15,17 @@ updates:
   - package-ecosystem: "pip"
     directory: "/test/requirements"
     schedule:
-      interval: "daily"
+      interval: "weekly"
+    commit-message:
+      prefix: "ci"
+    labels:
+      - "type/ci"
+
+  # Maintain GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
     commit-message:
       prefix: "ci"
     labels: