Support for MiniCPM-V 4.5

**Is your feature request related to a problem? Please describe.**
Currently your documentation lists `minicpm-v-2.6` with `MiniCPMv26ChatHandler`.
Since `MiniCPM-V 4.5` is out - could you please supprt it?

**Describe the solution you'd like**
`MiniCPM-V 4.5` is supported in `llama-cpp-python`

**Describe alternatives you've considered**
N/A

**Additional context**
llama.cpp already supports it [Add any other context or screenshots about the feature request here.](https://github.com/ggml-org/llama.cpp/pull/15575)