Update JupyterHub, JupyterLab, and jhub-apps stack#147

MUFFANUJ wants to merge 6 commits into

nebari-dev:mainnebari-dev/data-science-pack:mainfrom

MUFFANUJ:updateJlab&hubDepsMUFFANUJ/nebari-data-science-pack:updateJlab&hubDepsCopy head branch name to clipboard