harmonize pve versions check & vm vars (#3779)

* harmonize proxmox ve version check

* Update openwrt.sh

* push 0-4 and 1-4

tools/addon/netdata.sh

@@ -95,7 +95,7 @@ uninstall() {
   msg_ok "Completed Successfully!\n"
 }
 
-if ! pveversion | grep -Eq "pve-manager/(8\.[0-9])"; then
+if ! pveversion | grep -Eq "pve-manager/8\.[0-4](\.[0-9]+)*"; then
   echo -e "This version of Proxmox Virtual Environment is not supported"
   echo -e "Requires PVE Version 8.0 or higher"
   echo -e "Exiting..."