fix: correct alphabetical ordering of ruff in requirements.txt

requirements.txt

@@ -17,10 +17,10 @@ openai==2.14.0
 pydantic==2.12.5
 pydantic-core==2.41.5
 pypika-tortoise==0.6.3
-ruff==0.15.17
 python-dotenv==1.2.1
 pytz==2025.2
 pyyaml==6.0.3
+ruff==0.15.17
 sniffio==1.3.1
 starlette==0.50.0
 tortoise-orm==0.25.2