rollback to webpack 4

Author: ScriptedAlchemy

packages/react-server-dom-webpack/package.json

@@ -50,7 +50,7 @@
   "peerDependencies": {
     "react": "^17.0.0",
     "react-dom": "^17.0.0",
-    "webpack": "^5"
+    "webpack": "^4.43.0"
   },
   "dependencies": {
     "acorn": "^6.2.1",