adding fix for sglang benchmark

Author: namanlalitnyu

.github/workflows/sglang-benchmark.yml

@@ -186,6 +186,21 @@ jobs:
           # Verify installations
           echo "$(pwd)/sgl_server_env/bin" >> $GITHUB_PATH
 
+      - name: Install NVCC
+        if: env.DEVICE_NAME == 'cuda'
+        shell: bash
+        run: |
+          set -eux
+          sudo apt-get update
+          sudo apt-get install -y wget gnupg
+          wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-keyring_1.1-1_all.deb
+          sudo dpkg -i cuda-keyring_1.1-1_all.deb
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends cuda-toolkit-12-8
+          sudo ln -s /usr/local/cuda-12.8 /usr/local/cuda || true
+          echo "CUDA_HOME=/usr/local/cuda-12.8" >> $GITHUB_ENV
+          echo "/usr/local/cuda-12.8/bin" >> $GITHUB_PATH
+
       - name: Setup benchmark tests
         env:
           MODELS: ${{ matrix.models }}