Disable renovate-bot

Signed-off-by: Nick Slowinski <nick@nick-slowinski.de>

renovate.json

@@ -1,15 +1,3 @@
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "enabled": false
-  "packageRules": [
+}
-    {
-      "extends": "monorepo:docusaurus",
-      "groupName": "docusaurus monorepo",
-      "matchUpdateTypes": [
-        "digest",
-        "patch",
-        "minor",
-        "major"
-      ]
-    }
-  ]
-}