Use tagged version of llguidance that does not break the build

[HRKings]

This is a very simple PR to bump the version of llguidance to the commit that implemented that added fancy-regex because the build with -DLLAMA_LLGUIDANCE=ON breaks without it.

This fixes #13412

[CISC]

Oh, the irony? :)

/home/runner/work/llama.cpp/llama.cpp/common/llguidance.cpp: In function ‘LlgTokenizer* llama_sampler_llg_new_tokenizer(const llama_vocab*)’:
/home/runner/work/llama.cpp/llama.cpp/common/llguidance.cpp:192:5: error: missing initializer for member ‘LlgTokenizerInit::slices’ [-Werror=missing-field-initializers]
  192 |     };
      |     ^

[HRKings]

Oh wow, haha. How did you get this error? @CISC