Bump golang from 1.16.3 to 1.16.4
Bump golang from 1.16.3 to 1.16.4

Bumps golang from 1.16.3 to 1.16.4.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
coreos/coreos-baremetal,coreos/coreos-baremetal