chore: use renovate.json with forkProcessing to bypass limitation

Author: JounQin

.renovaterc

@@ -0,0 +1,7 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "github>1stG/configs"
+  ],
+  "forkProcessing": "enabled"
+}