add cuda build to ubuntu build matrix

.github/workflows/build-commit.yml

@@ -83,10 +83,11 @@ jobs:
             defines: '-DGGML_AVX2=OFF'
           - build: 'avx512'
             defines: '-DGGML_AVX512=ON'
-          - build: 'openblas'
+          - build: 'avx2-openblas'
             defines: '-DGGML_OPENBLAS=ON'
-
-
+          - build: 'avx2-cuda'
+            defines: '-DGGML_CUBLAS=ON  -DCMAKE_CUDA_COMPILER=/usr/local/cuda/bin/nvcc'
+            
 
     steps:
     - uses: actions/checkout@v3
@@ -97,9 +98,16 @@ jobs:
       run: sudo apt-get update && sudo apt-get install -yq libboost-dev
 
     - name: Install OpenBlas
-      if: ${{ matrix.build == 'openblas' }}
+      if: ${{ matrix.build == 'avx2-openblas' }}
       run: sudo apt-get install libopenblas-dev
 
+    - name: Install CUDA
+      if: ${{ matrix.build == 'avx2-cuda' }}
+      run: |
+          wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-keyring_1.0-1_all.deb
+          sudo dpkg -i cuda-keyring_1.0-1_all.deb
+          sudo apt-get update && sudo apt-get install -yq libboost-dev cuda-nvcc-11-7 libcublas-dev-11-7
+
     - name: Build
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
       # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type