cubicweb-vcsfile #4745787 vcrefresh command is broken [in-progress]

it does not set the local_repo_cache_root attribute on the config and the cnx is a context manager

priorityimportant
typebug
done in<not specified>
load1.000
load left1.000
closed by<not specified>
patch[ccplugin] ensure config.local_repo_cache_root is properly set (closes #4745787) [in-progress]