add github action for running tests

Author: tgvashworth

.github/workflows/docker-cloud-test.yml

@@ -0,0 +1,20 @@
+name: docker-cloud go tests
+on: [push]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: docker-cloud
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version-file: "docker-cloud/go.mod"
+          cache-dependency-path: "docker-cloud/go.sum"
+          cache: true
+      - name: Build
+        run: go build -v ./...
+      - name: Test
+        run: go test -v ./...