fix: ruff lint errors in test_embeddings.py (I001, F401)

Author: grayisnotacolor

tests/services/test_embeddings.py

@@ -4,8 +4,6 @@
 
 from unittest.mock import MagicMock, patch
 
-import pytest
-
 from cortex.core.config import CortexConfig
 from cortex.services.embeddings import (
     EmbeddingProvider,
@@ -15,7 +13,6 @@
     create_embedding_provider,
 )
 
-
 # -- SentenceTransformerProvider --------------------------------------------