fix: relax AttributeDef.default_value and index_type_es_fields to Any

Atlas API responses can return non-string scalars for these fields:
- default_value: native bool/int (e.g. false, 0) where str was expected
- index_type_es_fields values: int (e.g. {"ignore_above": 256}) where str was expected

msgspec strict=False does not coerce int/bool -> str, causing
ValidationError on live typedef responses. Widening to Any lets the
decoder accept whatever the API returns without pre-decode traversal.

Author: cmgrote

pyatlan_v9/model/typedef.py

@@ -627,7 +627,7 @@ def creator(
     description: Union[str, None, msgspec.UnsetType] = msgspec.UNSET
     """Description of the attribute definition."""
 
-    default_value: Union[str, None, msgspec.UnsetType] = msgspec.UNSET
+    default_value: Union[Any, None, msgspec.UnsetType] = msgspec.UNSET
     """Default value for this attribute (if any)."""
 
     display_name: Union[str, None, msgspec.UnsetType] = msgspec.UNSET
@@ -674,7 +674,7 @@ def creator(
     )
     """Internal use only."""
 
-    index_type_es_fields: Union[Dict[str, Dict[str, str]], None, msgspec.UnsetType] = (
+    index_type_es_fields: Union[Dict[str, Dict[str, Any]], None, msgspec.UnsetType] = (
         msgspec.field(default=msgspec.UNSET, name="indexTypeESFields")
     )
     """Internal use only."""