ci: add test workflow for Go Action

.gitea/workflows/test.yml

@@ -0,0 +1,19 @@
+name: 'Test Go Action'
+on: [push]
+jobs:
+  use-go-action:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '1.20'
+
+      - name: Use Go Action  
+        id: use-go-action
+        uses: https://gitea.com/Zettat123/simple-go-action@v1
+        with:
+          username: foo
+
+      - name: Print Output
+        run: echo 'output time is ${{ steps.use-go-action.outputs.time }}'