python: Sort webhooks imports with isort.

zerver/webhooks/gitea/tests.py

@@ -3,6 +3,7 @@ from mock import MagicMock, patch
 
 from zerver.lib.test_classes import WebhookTestCase
 
+
 class GiteaHookTests(WebhookTestCase):
     STREAM_NAME = 'commits'
     URL_TEMPLATE = "/api/v1/external/giteae?&api_key={api_key}&stream={stream}"

zerver/webhooks/gitea/view.py

@@ -12,7 +12,6 @@ from zerver.models import UserProfile
 # Gitea is a fork of Gogs, and so the webhook implementation is nearly the same.
 from zerver.webhooks.gogs.view import gogs_webhook_main
 
-
 fixture_to_headers = get_http_headers_from_filename("HTTP_X_GITEA_EVENT")
 
 def format_pull_request_event(payload: Dict[str, Any],