add arm linux runner

.github/workflows/ci.yml

@@ -34,6 +34,30 @@ jobs:
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4 -t tomato
 
+  linux-arm:
+    timeout-minutes: 10
+
+    runs-on: ubuntu-24.04-arm
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: Install Dependencies
+      run: sudo apt update && sudo apt -y install libsodium-dev cmake libx11-dev libxext-dev libxrandr-dev 
+
+    - name: ccache
+      uses: hendrikmuhs/ccache-action@v1.2
+      with:
+        key: ${{github.event.repository.name}}-${{github.job}}
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4 -t tomato
+
   android:
     timeout-minutes: 30
     # contains sections copied from sdl repo