[Bug]: what cuda version dlib supports so far

### What Operating System(s) are you seeing this problem on?

Linux (x86-64)

### dlib version

latest

### Python version

_No response_

### Compiler

gcc

### Expected Behavior

built from source and installation

### Current Behavior

dlib/dlib/cuda/cusolver_dlibapi.cu:10:10: fatal error: cusolverDn.h: No such file or directory
10 | #include

### Steps to Reproduce

cuda 11/cuda 12

### Anything else?

none