Go 1.11 includes a fix to os/user to be working in a static binary
(fixing https://github.com/golang/go/issues/23265). The fix requires
`osusergo` build tag to be set for static binaries, which is what
this commit adds (also for containerd).
[v2: sort build tags alphabetically]
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
70cdb1c664