Fix versions

Author: martinRenou

docs/source/dev_release.md

@@ -10,7 +10,7 @@ conda deactivate
 conda remove --all -y -n releasewidgets
 rm -rf ipywidgets
 
-conda create -c conda-forge --override-channels -y -n releasewidgets notebook "nodejs==16.*" "yarn<2" twine jupyterlab=3 jupyter-packaging jq python==3.9
+conda create -c conda-forge --override-channels -y -n releasewidgets "nodejs==16.*" "yarn=3" twine jupyterlab=4 jupyter-packaging jq python==3.9
 conda activate releasewidgets
 
 git clone [email protected]:jupyter-widgets/ipywidgets.git

jupyterlab_widgets/pyproject.toml

@@ -1,3 +1,3 @@
 [build-system]
-requires = ["jupyter_packaging~=0.7.9", "jupyterlab~=3.0", "setuptools>=40.8.0", "wheel"]
+requires = ["jupyter_packaging~=0.7.9", "jupyterlab~=4.0", "setuptools>=40.8.0", "wheel"]
 build-backend = "setuptools.build_meta"