tox: update ruff to v0.12.4

Update the fixed ruff version to its most recent.

Signed-off-by: James Knight <git@jdknight.me>

Author: jdknight

tox.ini

@@ -68,7 +68,7 @@ commands =
 [testenv:ruff]
 deps =
     {[testenv]deps}
-    ruff: ruff==0.12.2
+    ruff: ruff==0.12.4
 setenv =
     {[testenv]setenv}
     RUFF_CACHE_DIR={toxworkdir}/.ruff_cache