Update dependabot.yml (Fix #13939) (#13990)

* Update dependabot.yml

* Update dependabot.yml

.github/dependabot.yml

@@ -1,18 +1,22 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
 version: 2
 updates:
+  - package-ecosystem: npm
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 99
+    allow:
+      - dependency-type: all
 
-- package-ecosystem: npm
-  directory: "/"
-  schedule:
-    interval: weekly
-  open-pull-requests-limit: 99
-  allow:
-  - dependency-type: all
-  
-- package-ecosystem: bundler
-  directory: "/"
-  schedule:
-    interval: weekly
-  open-pull-requests-limit: 99
-  allow:
-  - dependency-type: all
+  - package-ecosystem: bundler
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 99
+    allow:
+      - dependency-type: all