chore: update dependabot config

Author: ShenQingchuan

.github/dependabot.yml

@@ -5,7 +5,13 @@
 
 version: 2
 updates:
-  - package-ecosystem: "npm" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: npm
+    directory: /
     schedule:
-      interval: "weekly"
+      interval: weekly
+    groups:
+      # Group all npm dependencies together
+      all-dependencies:
+        patterns:
+          - '*'
+    open-pull-requests-limit: 10