Clang CUDA Documentation Says Latest Supported Toolkit Is 12.1

Clang CUDA Documentation Says Latest Supported Toolkit Is 12.1: https://llvm.org/docs/CompileCudaWithLLVM.html. But it looks like from the codebase that the latest supported is actually 12.8:

```
enum class CudaVersion {
UNKNOWN,
CUDA_70,
CUDA_75,
CUDA_80,
CUDA_90,
CUDA_91,
CUDA_92,
CUDA_100,
CUDA_101,
CUDA_102,
CUDA_110,
CUDA_111,
CUDA_112,
CUDA_113,
CUDA_114,
CUDA_115,
CUDA_116,
CUDA_117,
CUDA_118,
CUDA_120,
CUDA_121,
CUDA_122,
CUDA_123,
CUDA_124,
CUDA_125,
CUDA_126,
CUDA_128,
CUDA_129,
CUDA_130,
FULLY_SUPPORTED = CUDA_128,
PARTIALLY_SUPPORTED =
CUDA_129, // Partially supported. Proceed with a warning.
NEW = 10000, // Too new. Issue a warning, but allow using it.
};
```

Is this documentation kept up to date?