[Docs] Add --prerelease=allow to cookbook uv install commands (#35920)

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

docs/cookbook/autoregressive/GLM/GLM-4.6V.mdx

@@ -41,7 +41,7 @@ git clone https://github.com/sgl-project/sglang.git
 cd sglang
 uv venv
 source .venv/bin/activate
-uv pip install -e "python[all]" --index-url=https://pypi.org/simple
+uv pip install --prerelease=allow -e "python[all]" --index-url=https://pypi.org/simple
 pip install nvidia-cudnn-cu12==9.16.0.29
 # Install ffmpeg to support video input
 sudo apt update

docs/cookbook/autoregressive/GLM/GLM-5.2.mdx

@@ -19,7 +19,7 @@ For all methods and hardware platforms, see the [official SGLang installation gu
 ```bash Command
 pip install --upgrade pip
 pip install uv
-uv pip install sglang
+uv pip install --prerelease=allow sglang
 ```
 
 Then run the **Python** output of the command panel below in that environment.