Gopkg.lock says it's "dbea6f2bd41658b84b00417ceefa416b979cbf10"
but it is actually "5017d4e9a9cf2d4381db99eacd9baf84b95bfb14".
We need to make sure Gopkg.lock does not lie otherwise `dep ensure`
would really fetch the locked revision and it causes build failure
due to API changes.
Introduced by: 76d9db3e0b (vendor: Add github.com/gogo/protobuf).
While at it, constraint containerd/cgroups to a working revision.
Fixes: #1447
Signed-off-by: Peng Tao <bergwolf@hyper.sh>