Bump to v0.16.2-gitlab.1

Sync branch with upstream https://github.com/docker/machine/
6 jobs for v0.16.2-gitlab.1-rc1 in 8 minutes and 17 seconds
latest
Status Job ID Name Coverage
  Validate
passed #315035965
docker
linux amd64

00:05:13

 
  Build
passed #315035966
docker
darwin amd64

00:02:58

passed #315035969
docker
linux arm

00:03:03

passed #315035970
docker
linux arm64

00:02:53

passed #315035967
docker
openbsd amd64

00:02:49

passed #315035968
docker
windows amd64

00:03:03