You should be able to temporarily restore network connectivity via
ip a a 192.168.0.5/24 dev eno1
ip link set up eno1
ip r a default via 192.168.0.1
Could you then please post the output of
pveversion -v
apt update
If you have issue doing literally anything with apt (after you had removed some PVE package (typically only to intend to put it back), or even just the proxmox-ve meta package), a quick way out of the mess:
rm /etc/apt/apt.conf.d/10pveapthook...