Install codium on a Qubes template

The following commands can install Codium on a Qubes OS template:

sudo apt install extrepo
sudo extrepo enable vscodium
sudo apt install codium

There are problems creating the sha256 checksum 880957c1310498fcf1f91025fbcdf5dfb5b41832919e1f0646bcbafdb7101bd7 from the public key of the repo.