Provide x86_64-unknown-linux-gnu binaries

[xtqqczze]

Update deploy workflow to include x86_64-unknown-linux-gnu target

[GuillaumeLagrange]

Hello!

Until now we quite intentionally shipped musl binaries when possible in order to avoid glibc mismatches as much as possible. For the cli, are there any requirement that we're missing that would make the musl binaries insufficient?