update renovate conf

Author: kazupon

renovate.json

@@ -2,5 +2,10 @@
   "extends": [
     "config:base",
     ":preserveSemverRanges"
-  ]
+  ],
+  "labels": ["Type: Dependency"],
+  "automerge": true,
+  "major": {
+    "automerge": false
+  }
 }