Update post-pve-install.sh

tweak

misc/post-pve-install.sh

@@ -151,7 +151,7 @@ EOF
       case $CHOICE in
       yes)
         msg_info "Installing Proxmox 6.2 kernel"
-        apt install pve-kernel-6.2 &>/dev/null
+        apt-get install -y pve-kernel-6.2 &>/dev/null
         microcode="need"
         msg_ok "Installed Proxmox 6.2 kernel"
         ;;