CI: add build test run

Add build test run and fuzzing test. Lua support is also enabled.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

.github/workflows/build-libubox.yml

@@ -0,0 +1,24 @@
+name: Build libubox
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build-backports:
+    name: Build libubox
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Install Dependencies
+        run: |
+          sudo apt update && sudo apt install cmake make gcc pkg-config python3 libjson-c-dev lua5.1 liblua5.1-0-dev
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install libubox
+        run: |
+          cmake -DBUILD_EXAMPLES=OFF -DUNIT_TESTING=ON
+          make
+          sudo make install