cicd: add action checking to dependabot.

Codex- · Codex- · commit 05ee1566c6ad · 2022-08-01T11:43:10.000+12:00
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
@@ -1,6 +1,11 @@
 version: 2
 updates:
-  - package-ecosystem: "npm"
-    directory: "/"
+  - package-ecosystem: github-actions
+    directory: /
     schedule:
-      interval: "monthly"
+      interval: monthly
+
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: monthly
