[b/407765680] Better UX for dumper connector tasks failures due to la…#841

sten1ee merged 2 commits intomaingoogle/dwh-migration-tools:mainfrom

user_friendly_err_msg_for_kerberos_auth_requiredgoogle/dwh-migration-tools:user_friendly_err_msg_for_kerberos_auth_requiredCopy head branch name to clipboard