Update dependency ruff to v0.12.9

Author: elastic-renovate-prod[bot]

requirements.txt

@@ -7,7 +7,7 @@ ecs-logging==2.2.0
 types-protobuf==5.28.3.20241203
 
 # dev
-ruff==0.12.8
+ruff==0.12.9
 pytest==8.4.1
 pytest-cov==6.1.1
 pytest-asyncio==1.0.0