[WASI-NN] ggml: update ggml to b2636

[dm4]

• This version of llama.cpp adds the support of command r plus model.

[juntao]

Hello, I am a code review bot on flows.network. Here are my reviews of code commits in this PR.

---

Commit d0797868fed0e4e8c86b9391f31ca32af562eba4

The main change in this patch is the update of the Git tag used by the project llama from b2534 to b2636. This was done in the CMakeLists.txt file of the wasi_nn plugin. This means that when FetchContent_Declare is called and the llama project source is fetched, the b2636 version of the project will be used instead of the b2534.

Potential issues could arise if the version b2636 of the llama project is incompatible with the existing codebase or dependencies. Additionally, if there are important changes, issues or bug fixes between b2534 and b2636 that significantly impact the functionality or safety of the software, then without proper review and testing of these changes, problems may arise. It's important to review the release notes of llama project for these versions to ensure that there will not be any unexpected issues.