[build] Script to update Bazel multitool.lock.json (and update ruff) (#16061)

* Script to update Bazel multitool.lock.json
* Update ruff dependency for Python

NOKEYCHECK=True
GitOrigin-RevId: 91fc24d57f321355ff9d9da367084471455d7e06
diff --git a/tox.ini b/tox.ini
index 7ca342b..36a9046 100644
--- a/tox.ini
+++ b/tox.ini
@@ -43,7 +43,7 @@
 [testenv:linting]
 skip_install = true
 deps =
-    ruff==0.11.12
+    ruff==0.12.3
 commands =
     ruff check --fix --show-fixes --exit-non-zero-on-fix .
     ruff format --exit-non-zero-on-format .