Update recipe_test_multi_gpu.yaml

.github/workflows/recipe_test_multi_gpu.yaml

@@ -58,7 +58,7 @@ jobs:
           python -m pip install lm-eval==0.4.*
       - name: Upgrade gcc
         run: |
-          sudo dnf install -y gcc-11 gcc-c++-11
+          sudo yum install -y gcc-toolset-11-gcc-11.2.1-9.1.el8.x86_64 gcc-toolset-11-gcc-c++-11.2.1-9.1.el8.x86_64
           echo "GCC version to follow"
           echo $(gcc --version)
       - name: Run recipe tests with coverage