Bump cross-spawn from 7.0.3 to 7.0.6 in /python/jupyterlab-collaborative-chat/ui-tests in the npm_and_yarn group across 1 directory

Bump cross-spawn from 7.0.3 to 7.0.6 in /python/jupyterlab-collaborative-chat/ui-tests in the npm_and_yarn group across 1 directory #448