manager: Fix typo when setting managed values on assemblers

src/calng/CalibrationManager.py

@@ -1445,7 +1445,7 @@ class CalibrationManager(DeviceClientBase, Device):
 
         if assemblers:
             for remote_key, local_key, _ in self._managed_assembler_keys:
-                await self._set_on_assembler(
+                await self._set_on_assemblers(
                     remote_key, get_property(self, f'managedKeys.{local_key}'))
 
         if corrections: