chore: reorg imports (#35308)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/extensions/ext_sentry.py

@@ -5,11 +5,12 @@ from dify_app import DifyApp
 def init_app(app: DifyApp):
     if dify_config.SENTRY_DSN:
         import sentry_sdk
-        from graphon.model_runtime.errors.invoke import InvokeRateLimitError
         from sentry_sdk.integrations.celery import CeleryIntegration
         from sentry_sdk.integrations.flask import FlaskIntegration
         from werkzeug.exceptions import HTTPException
 
+        from graphon.model_runtime.errors.invoke import InvokeRateLimitError
+
         try:
             from langfuse._utils import parse_error