Update dependency pydantic to ~=2.7.0

requirements.txt

@@ -4,7 +4,7 @@ requests~=2.31.0
 python-dateutil~=2.8.2
 uvicorn~=0.24.0.post1
 fastapi~=0.109.2
-pydantic~=2.4.2
+pydantic~=2.7.0
 langchain~=0.0.330
 outlines~=0.0.9
 transformers~=4.35.0