FindCUDAToolkit: PATH_SUFFIXES ../ pattern breaks on symlinks

The CUDA toolkit layout in nvcr.io/nvidia/nvhpc:22.9-devel-cuda_multi-ubuntu22.04 has symlinks like /path/to/cuda/bin -> 11.7/bin. As discussed in !7946 (comment 1280257), FindCUDAToolkit's use of a PATH_SUFFIXES ../ pattern causes libraries to be found at paths like /path/to/cuda/bin/../lib/libfoo.so, but after removing bin/../, the path does not exist. Pending some future CMake development that improves the path normalization behavior, FindCUDAToolkit needs to be revised to avoid using ../ in PATH_SUFFIXES. !7945 (merged) already updated one such case IIUC.