Upgrade error message - inaccurate text

texts of these translation keys has to be extended 🤔

ftp_err_no_ext

ftp_err_no_sftp

ftp_err_no_ssl

i had this issue https://invisioncommunity.com/forums/topic/482565-automatic-update-doesnt-work/, but the problem was not with missing SSH2 extension, nor with firewall 🙄 The problem was in files and folders rights which is nowhere mentioned and definitely should be 😐