ci: add go test

.github/workflows/build.yml

@@ -50,6 +50,9 @@ jobs:
           echo "::set-output name=short_sha::$(git rev-parse --short HEAD)"
           echo "::set-output name=git_tag::$(git describe --tags --always)"
 
+      - name: Test
+        run: go test -v ./...
+
       - name: Build
         env:
           GOOS: ${{ matrix.GOOS }}