ci: Add default build test

.gitea/workflows/test.yml

@@ -0,0 +1,21 @@
+name: Gol CI
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install cmake
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake
+      - name: Build and test
+        run: |
+          mkdir build
+          cd build
+          cmake ..
+          make