Bump ruff from 0.12.8 to 0.12.9 (#25772)

dependabot[bot] · web-flow · commit 7bbc7909003f · 2025-08-18T08:03:04.000Z
diff --git a/requirements-lintrunner.txt b/requirements-lintrunner.txt
@@ -2,5 +2,5 @@
 # When any package below is changed, you shall run "lintrunner init" again.
 lintrunner==0.12.7
 lintrunner-adapters==0.12.5
-ruff==0.12.8
+ruff==0.12.9
 clang-format==20.1.8
