improve: mordernizing validation by migrating pydantic from 1.x to 2.x (#4592)

api/core/moderation/output_moderation.py

@@ -4,7 +4,7 @@ import time
 from typing import Any, Optional
 
 from flask import Flask, current_app
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 
 from core.app.apps.base_app_queue_manager import AppQueueManager, PublishFrom
 from core.app.entities.queue_entities import QueueMessageReplaceEvent
@@ -33,9 +33,7 @@ class OutputModeration(BaseModel):
     buffer: str = ''
     is_final_chunk: bool = False
     final_output: Optional[str] = None
-
-    class Config:
-        arbitrary_types_allowed = True
+    model_config = ConfigDict(arbitrary_types_allowed=True)
 
     def should_direct_output(self):
         return self.final_output is not None