Add Makefile workflow

.github/workflows/makefile.yml

@@ -0,0 +1,28 @@
+name: Makefile CI
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install dependencies
+      run: sudo apt-get update; sudo apt-get install lua5.2 make zip
+
+    - name: Run check
+      run: make package clean
+
+    - name: Save the build
+      uses: actions/[email protected]
+      with:
+        path: pkg/
+        if-no-files-found: error
+        overwrite: true