Add simple test workflow

.gitea/workflows/test.yml

@@ -0,0 +1,10 @@
+name: Simple Test Workflow
+on: [push]
+jobs:
+  test-job:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Run a command
+        run: echo "Hello, Gitea Actions!"