Add pydantic to requirements, update requirements

Author: febus982

domains/books/_dto.py

@@ -7,12 +7,6 @@ class BookData(BaseModel):
     title: str
     author_name: str
 
-    class Config:
-        orm_mode = True
-
 
 class Book(BookData):
     book_id: Union[int, None] = None
-
-    class Config:
-        orm_mode = True