fix: 解决cache_areas_info重复执行的问题

apps/am/apps.py

@@ -4,11 +4,10 @@ from django.core.cache import cache
 class AmConfig(AppConfig):
     default_auto_field = 'django.db.models.BigAutoField'
     name = 'apps.am'
-    is_initialized = False
 
     def ready(self) -> None:
-        if not self.is_initialized:
+        if cache.get('cache_areas_need_task', True):
             from apps.am.tasks import cache_areas_info
             cache_areas_info.delay()
-            self.is_initialized = True
+            cache.set('cache_areas_need_task', False, timeout=30)
         return super().ready()