Stop overriding intree extension versions on build (#6239)

src/extensions/npm/extensions/package.json

@@ -16,8 +16,8 @@
     "name": "OpenLens Authors"
   },
   "dependencies": {
-    "@material-ui/core": "4.12.3",
-    "@types/node": "14.17.14",
+    "@material-ui/core": "^4.12.3",
+    "@types/node": "^16.11.58",
     "@types/react": "^17.0.45",
     "@types/react-dom": "^17.0.16",
     "@types/react-router": "^5.1.18",