ci: move go vet to validate check (#430)

* ci: move go vet to validate check

Signed-off-by: Paulo Pires <pjpires@gmail.com>

* cri: don't build when not on linux

Signed-off-by: Paulo Pires <pjpires@gmail.com>

.circleci/config.yml

@@ -6,6 +6,9 @@ jobs:
     working_directory: /go/src/github.com/virtual-kubelet/virtual-kubelet
     steps:
       - checkout
+      - run:
+          name: go vet
+          command: V=1 CI=1 make vet
       - run:
           name: Install linters
           command: curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s v1.10.2 && mv ./bin/* /go/bin/