Migrate config renovate.json (#843)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

renovate.json

@@ -5,7 +5,9 @@
   "packageRules": [
     {
       "groupName": "rollup + plugins",
-      "packagePatterns": ["^rollup"]
+      "matchPackageNames": [
+        "/^rollup/"
+      ]
     }
   ]
 }