chore: add test workflow (#20)

* Add test workflow

* Update Go version

* Update action trigger

.github/workflows/test.yaml

@@ -0,0 +1,19 @@
+on:
+  push:
+    branches: [master]
+  pull_request: {}
+name: Test
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: "1.17"
+
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Test
+      run: go test ./...