* update to use cdn for hub
* add cdn for version
* fix unit tests accodingly with new cdn
Co-authored-by: sabban <15465465+sabban@users.noreply.github.com>
* avoid this confusing behaviour where 'cscli parsers/scenarios/... upgrade' won't tell a thing if no arguments are given (and won't do anything neither)
* avoid repeating warnings about available update to the user