Update prepare_build_environment_linux.sh

Author: 3manifold

python/tools/prepare_build_environment_linux.sh

@@ -20,6 +20,7 @@ if [ "$CIBW_ARCHS" == "aarch64" ]; then
 
 else
     # Install CUDA 12.2:
+    dnf install -y dnf-utils
     yum-config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel8/x86_64/cuda-rhel8.repo
     # error mirrorlist.centos.org doesn't exists anymore.
     sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo