Use the dataclass decorator from dataclasses

We are not using the `.Schema` attribute from marshmallow_dataclass, so
it is better to just stick to the standard `dataclass` decorator to make
thing simpler.

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

src/frequenz/sdk/config/_logging_actor.py

@@ -5,13 +5,12 @@
 
 import logging
 from collections.abc import Mapping
-from dataclasses import field
+from dataclasses import dataclass, field
 from typing import Annotated, Any
 
 import marshmallow
 import marshmallow.validate
 from frequenz.channels import Receiver
-from marshmallow_dataclass import dataclass
 
 from ..actor import Actor