Fix jupyterlite version

Author: fcollonval

packages/react/package.json

@@ -127,8 +127,8 @@
     "@jupyterlab/toc-extension": "^6.0.0",
     "@jupyterlab/translation-extension": "^4.0.0",
     "@jupyterlab/ui-components-extension": "^4.0.0",
-    "@jupyterlite/server": "^4.0.0",
-    "@jupyterlite/server-extension": "^4.0.0",
+    "@jupyterlite/server": "^0.4.0",
+    "@jupyterlite/server-extension": "^0.4.0",
     "@lumino/default-theme": "^2.0.0",
     "@primer/react": "^36.25.0",
     "assert": "^2.0.0",