fixup! Refactor serialization handling by replacing SerialMixin with …

…Serializable and adding a dedicated serialization module

Enhance unstructure hook for Benchmark class by integrating cattr's make_dict_unstructure_fn for covering recursive serialization of settings and exclude function

benchmarks/definition/config.py

@@ -8,6 +8,7 @@
 
 from attrs import define, field
 from attrs.validators import instance_of
+from cattr.gen import make_dict_unstructure_fn, override
 from pandas import DataFrame
 
 from baybe.utils.random import temporary_seed
@@ -94,6 +95,9 @@ def __call__(self) -> Result:
 converter.register_unstructure_hook(
     Benchmark,
     lambda o: dict(
-        {"description": o.description}, **converter.unstructure_attrs_asdict(o)
+        {"description": o.description},
+        **make_dict_unstructure_fn(Benchmark, converter, function=override(omit=True))(
+            o
+        ),
     ),
 )