fix: resolve Pydantic model_name field conflict warning

Add protected_namespaces=() to CacheEntry model config to resolve
UserWarning about field 'model_name' conflicting with protected
namespace 'model_'.

Fixes #371

Co-authored-by: Andrew Brookins <[email protected]>

Author: claude[bot]

redisvl/extensions/cache/embeddings/schema.py

@@ -6,7 +6,7 @@
 
 from typing import Any, Dict, List, Optional
 
-from pydantic import BaseModel, Field, model_validator
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 from redisvl.extensions.constants import EMBEDDING_FIELD_NAME, METADATA_FIELD_NAME
 from redisvl.utils.utils import current_timestamp, deserialize, serialize
@@ -15,6 +15,8 @@
 class CacheEntry(BaseModel):
     """Embedding cache entry data model"""
 
+    model_config = ConfigDict(protected_namespaces=())
+
     entry_id: str
     """Cache entry identifier"""
     text: str