[V1][Structured Output] Update llguidance (`>= 0.7.11`) to avoid...

[V1][Structured Output] Update llguidance (`>= 0.7.11`) to avoid AttributeError (no `StructTag`)  (#17839)
Signed-off-by: shen-shanshan <467638484@qq.com>

requirements/common.txt

@@ -19,7 +19,7 @@ pillow  # Required for image processing
 prometheus-fastapi-instrumentator >= 7.0.0
 tiktoken >= 0.6.0  # Required for DBRX tokenizer
 lm-format-enforcer >= 0.10.11, < 0.11
-llguidance >= 0.7.9, < 0.8.0; platform_machine == "x86_64" or platform_machine == "arm64" or platform_machine == "aarch64"
+llguidance >= 0.7.11, < 0.8.0; platform_machine == "x86_64" or platform_machine == "arm64" or platform_machine == "aarch64"
 outlines == 0.1.11
 lark == 1.2.2
 xgrammar == 0.1.18; platform_machine == "x86_64" or platform_machine == "aarch64"