replaced matrix.name to matrix.cluster to avoid syntax error

Author: Malmahrouqi3

.github/workflows/bench.yml

@@ -88,7 +88,7 @@ jobs:
         uses: actions/upload-artifact@v4
         if: always()
         with:
-          name: ${{ matrix.name }}-${{ matrix.device }}
+          name: ${{ matrix.cluster }}-${{ matrix.device }}
           path: |
             pr/bench-${{ matrix.device }}.*
             pr/build/benchmarks/*