`make` is able to build project binaries, but fails with
error `hack/lib/golang.sh: line 455: go: command not found`
trying to place them if go binary is not in the PATH.
This happens because kube::golang::place_bins uses different
environment than kube::golang::build_binaries.
Setting up an one environment for both `kube::golang::place_bins`
and `kube::golang::build_binaries` should solve this issue and allow
default make target to fully work without go binary in the PATH.
91099aca72