ci : use env variable instead of step id

Author: danbev

.github/workflows/build.yml

@@ -604,7 +604,6 @@ jobs:
           echo "CUDA_CACHE_MAXSIZE=4294967296" | Out-File -FilePath $env:GITHUB_ENV -Append
 
       - name: Install Cuda Toolkit 11.8.0
-        id: cuda-toolkit
         if: ${{ matrix.cuda-toolkit == '11.8.0' }}
         run: |
           mkdir -p "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8.0"
@@ -633,7 +632,6 @@ jobs:
           echo "CUDA_PATH_V11_8=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8.0" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
 
       - name: Install Cuda Toolkit 12.2
-        id: cuda-toolkit
         if: ${{ matrix.cuda-toolkit == '12.2.0' }}
         run: |
           mkdir -p "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.2.0"
@@ -715,7 +713,7 @@ jobs:
 
       - name: Copy CUDA DLLs
         run: |
-          Get-ChildItem "${{ steps.cuda-toolkit.outputs.CUDA_PATH }}/bin/" -Filter "*.dll" |
+          Get-ChildItem "$env:CUDA_PATH\bin\" -Filter "*.dll" |
           Copy-Item -Destination "build/bin/${{ matrix.build }}"
 
       - name: Copy SDL2.dll