:robot: ci: switch to go test

.github/tests.sh

@@ -7,4 +7,4 @@ set -ex
 GO111MODULE=off go get github.com/onsi/ginkgo/ginkgo
 GO111MODULE=off go get github.com/onsi/gomega/...
 
-TEST_INSTANCE="http://localhost:8080" ginkgo -r api/client
+TEST_INSTANCE="http://localhost:8080" go test ./api/client