Add extension registration periodic

https://tracker.yandex.ru/AUTO-1495

perxis/extensions/bootstrap.py

+import aiocron
 import grpc
 import logging
 
 from concurrent import futures
-from perxis.extensions import manager_pb2
 from perxis.collections import collections_pb2_grpc
 from perxis.environments import environments_pb2_grpc
 from perxis.roles import roles_pb2_grpc
@@ -22,6 +22,13 @@ def bootstrap(
     interceptor = header_adder_interceptor(
         'x-perxis-access', 'system'
     )
+
+    @aiocron.crontab('* * * * *', start=False)
+    def register_extension():
+        ext_manager_stub.RegisterExtensions(manager_pb2.RegisterExtensionsRequest(
+            extensions=[ext_descriptor]
+        ))
+
     with grpc.insecure_channel(ext_manager_host) as extensions_manager_channel:
         intercept_channel_extensions_manager_channel = grpc.intercept_channel(extensions_manager_channel, interceptor)
 
@@ -43,9 +50,7 @@ def bootstrap(
         #                 f"Изменилась версия расширения {ext_descriptor.extension} ({ext.version} -> {ext_descriptor.version})"
         #             )
 
-        ext_manager_stub.RegisterExtensions(manager_pb2.RegisterExtensionsRequest(
-            extensions=[ext_descriptor]
-        ))
+        register_extension()
 
         logger.info(f"Расширение {ext_descriptor.extension} зарегистрировано в perxis")