gifn-apply: use Ruff 0.1.15: allow re.X

Override a Ruff check for short names for the regualar expression modifiers.

Ruff: FURB167
Change-Id: I76a5c730b39a3b95ae971deffe7ba9060120196c
diff --git a/tools/git-if-needed/python/requirements/ruff.txt b/tools/git-if-needed/python/requirements/ruff.txt
index 5f0dff4..b86f19e 100644
--- a/tools/git-if-needed/python/requirements/ruff.txt
+++ b/tools/git-if-needed/python/requirements/ruff.txt
@@ -1,4 +1,4 @@
 # SPDX-FileCopyrightText: StorPool <support@storpool.com>
 # SPDX-License-Identifier: BSD-2-Clause
 
-ruff == 0.1.13
+ruff == 0.1.15