Add metrics page for embeddings and face / license plate processing times (#15818)

* Get stats for embeddings inferences

* cleanup embeddings inferences

* Enable UI for feature metrics

* Change threshold

* Fix check

* Update python for actions

* Set python version

* Ignore type for now

frigate/service_manager/service.py

@@ -26,7 +26,7 @@ class Service(ABC):
             self.__dict__["name"] = name
 
         self.__manager = manager or ServiceManager.current()
-        self.__lock = asyncio.Lock(loop=self.__manager._event_loop)
+        self.__lock = asyncio.Lock(loop=self.__manager._event_loop)  # type: ignore[call-arg]
         self.__manager._register(self)
 
     @property