fix: update langchain-openai version to 1.1.11

Author: liuruibin

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
     "beautifulsoup4==4.13.4",
     "jieba==0.42.1",
     "langchain==1.2.10",
-    "langchain-openai==1.1.10",
+    "langchain-openai==1.1.11",
     "langchain-anthropic==1.3.4",
     "langchain-community==0.4.1",
     "langchain-deepseek==1.0.1",