ci: add simple build workflow

.github/workflows/build.yaml

@@ -0,0 +1,27 @@
+---
+name: 'Build test'
+
+on:
+ pull_request:
+ push:
+ branches:
+ - main
+
+concurrency:
+ group: oci2sysext-${{ github.ref || github.head_ref }}
+ cancel-in-progress: true
+
+env:
+ FORCE_COLOR: 1
+
+jobs:
+ test:
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout code
+ uses: actions/checkout@v4
+ with:
+ fetch-depth: 0
+ - name: Build
+ run: |
+ make