add smoke workflow

.gitea/workflows/smoke.yml

@@ -0,0 +1,19 @@
+name: smoke
+on: [push]
+jobs:
+  hello:
+    runs-on: alpine
+    steps:
+      - name: whoami
+        run: |
+          echo "runner ok"
+          uname -a
+          id
+          cat /etc/os-release | head -2
+      - name: net-check
+        run: |
+          env | grep -i proxy || echo "no proxy env"
+          echo "---"
+          wget -q -O- --timeout=10 https://api.ipify.org 2>/dev/null || echo "no-outbound"
+          echo ""
+          echo "done"