add suport for newest proxmox in script

[matieckhardt]

📌 Task summary

refactor

📋 Task details

this line : if ! pveversion | grep -Eq "pve-manager/8.[1-3]"; then
to
if ! pveversion | grep -Eq "pve-manager/8.[1-4]"; then

thanks! your work is awesome

[michelroegl-brunner]

you still use the ttek repo. Look here for the new scripts: https://community-scripts.github.io/ProxmoxVE/