Try to install POCL to run tests on GitHub servers.

Author: gsvgit

.github/workflows/build.yml

@@ -14,6 +14,14 @@ jobs:
     - uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '9.0.x'
+    
+    - name: Setup POCL and clinfo 
+      run: |
+         apt update
+         apt install -y pocl-opencl-icd clinfo
+    
+    - name: Check OpenCL
+      run: clinfo
 
     - name: Build
       run: dotnet build -c Release