Add Dependabot config (#10876)

.dependabot/config.yml

@@ -0,0 +1,10 @@
+version: 1
+
+update_configs:
+  - package_manager: "ruby:bundler"
+    directory: "/"
+    update_schedule: "live"
+
+  - package_manager: "javascript"
+    directory: "/"
+    update_schedule: "live"