internal/ci: bump Go and goreleaser for v0.16.0-alpha.1
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Change-Id: I0eb2892dd108fdffe6e2d339467ef458c546d7a5
Reviewed-on: https://cue.gerrithub.io/c/cue-lang/cue/+/1229644
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>
Reviewed-by: Matthew Sackman <matthew@cue.works>