add ci workflow

.gitea/workflows/test.yml

@@ -0,0 +1,12 @@
+name: ci-test
+on: [push]
+jobs:
+  hello:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Say hello
+        run: |
+          echo hello-from-gitea-runner
+          uname -a
+          date