Fix embeddings failing to start

frigate/events/cleanup.py

@@ -27,11 +27,13 @@ class EventCleanup(threading.Thread):
         self.name = "event_cleanup"
         self.config = config
         self.stop_event = stop_event
-        self.embeddings = Embeddings()
         self.camera_keys = list(self.config.cameras.keys())
         self.removed_camera_labels: list[str] = None
         self.camera_labels: dict[str, dict[str, any]] = {}
 
+        if self.config.semantic_search.enabled:
+            self.embeddings = Embeddings()
+
     def get_removed_camera_labels(self) -> list[Event]:
         """Get a list of distinct labels for removed cameras."""
         if self.removed_camera_labels is None: