Merge pull request #593 from probulate/actions-bot

Add github-actions dependabot config

.github/dependabot.yml

@@ -7,3 +7,7 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"