Update dependency transformers to v5 [SECURITY]

Author: renovate[bot]

src/memory-store/services/embedding-service/requirements.txt

@@ -6,7 +6,7 @@ pydantic==2.5.0
 # ML dependencies - pinned for compatibility
 # torch>=2.0.0,<3.0.0
 sentence-transformers==2.2.2
-transformers==4.35.2
+transformers==5.0.0
 huggingface_hub==0.17.3
 
 # Additional dependencies