feat：新增dify1.11.1版本

dify_1.11.1/api/extensions/ext_timezone.py

@@ -0,0 +1,11 @@
+import os
+import time
+
+from dify_app import DifyApp
+
+
+def init_app(app: DifyApp):
+    os.environ["TZ"] = "UTC"
+    # windows platform not support tzset
+    if hasattr(time, "tzset"):
+        time.tzset()