[skip ci] Update and rename renovate.json to .github/renovate.json

Author: rainbowdashlabs

.github/renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "github>eldoriarpg/.github//.github/default_renovate"
+  ]
+}