Update dependency pydantic-settings to v2.13.0

Author: renovate[bot]

requirements.txt

@@ -26,7 +26,7 @@ redis>=5.0.0
 # Configuration management
 python-dotenv==1.2.1
 pydantic==2.12.5
-pydantic-settings==2.12.0
+pydantic-settings==2.13.0
 
 # Structured JSON logging
 structlog==25.5.0