Fix typo in CI configuration

1 job for master in 36 seconds (queued for 27 seconds)
Status Job ID Name Coverage
  Test
failed #131941837
test

00:00:36

 
Name Stage Failure
failed
test Test
	/usr/local/go/src/gitlab.com/zerok/container-inventory/pkg/registryclient (from $GOROOT)
/go/src/gitlab.com/zerok/container-inventory/pkg/registryclient (from $GOPATH)
cmd/container-inventory/cmd/root.go:11:2: cannot find package "gitlab.com/zerok/container-inventory/pkg/sessionfile" in any of:
/usr/local/go/src/gitlab.com/zerok/container-inventory/pkg/sessionfile (from $GOROOT)
/go/src/gitlab.com/zerok/container-inventory/pkg/sessionfile (from $GOPATH)
pkg/registryclient/registryclient.go:10:2: cannot find package "github.com/pkg/errors" in any of:
/usr/local/go/src/github.com/pkg/errors (from $GOROOT)
/go/src/github.com/pkg/errors (from $GOPATH)
ERROR: Job failed: exit code 1