update renovate schema

Author: rasswanth-s

renovate.json

@@ -1,6 +1,12 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:recommended"
-  ]
+    "config:recommended",
+    ":maintainLockFilesWeekly",
+    ":prHourlyLimitNone"
+  ],
+  "prConcurrentLimit": 0,
+  "lockFileMaintenance": {
+    "enabled": true
+  }
 }