Fix:bug fix (#12423)

### What problem does this PR solve?
change: 
initialize webhook configuration in webhook function
remove debug print statement from airtable_connector
remove redundant uuid import in imap_connector

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/apps/sdk/agents.py

@@ -162,6 +162,7 @@ async def webhook(agent_id: str):
         return get_data_error_result(code=RetCode.BAD_REQUEST,message="Invalid DSL format."),RetCode.BAD_REQUEST
 
     # 4. Check webhook configuration in DSL
+    webhook_cfg = {}
     components = dsl.get("components", {})
     for k, _ in components.items():
         cpn_obj = components[k]["obj"]

common/data_source/airtable_connector.py

@@ -75,7 +75,6 @@ class AirtableConnector(LoadConnector, PollConnector):
         batch: list[Document] = []
 
         for record in records:
-            print(record)
             record_id = record.get("id")
             fields = record.get("fields", {})
             created_time = record.get("createdTime")

common/data_source/imap_connector.py

@@ -12,6 +12,7 @@ from email.utils import collapse_rfc2231_value, parseaddr
 from enum import Enum
 from typing import Any
 from typing import cast
+import uuid
 
 import bs4
 from pydantic import BaseModel
@@ -635,7 +636,6 @@ def _parse_singular_addr(raw_header: str) -> tuple[str, str]:
 
 if __name__ == "__main__":
     import time
-    import uuid
     from types import TracebackType
     from common.data_source.utils import load_all_docs_from_checkpoint_connector