fix syntax error

Author: ptrblck

packaging/pkg_helpers.bash

@@ -53,6 +53,7 @@ setup_cuda() {
         export CUDA_HOME=/usr/local/cuda-12.1/
       fi
       export TORCH_CUDA_ARCH_LIST="5.0+PTX;6.0;7.0;7.5;8.0;8.6;9.0"
+      ;;
     cu118)
       if [[ "$OSTYPE" == "msys" ]]; then
         export CUDA_HOME="C:\\Program Files\\NVIDIA GPU Computing Toolkit\\CUDA\\v11.8"