add ci

.github/workflows/ci-ubuntu.yml

@@ -0,0 +1,23 @@
+name: Build
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.17
+    - name: Checkout wireproxy
+      uses: actions/checkout@v2
+    - name: Build wireproxy
+      run: go build ./cmd/wireproxy
+