Update flake8 version to make linter work again

dieriver · dieriver · commit 118d438658da · 2025-07-15T16:46:43.000+02:00
diff --git a/test_requirements.txt b/test_requirements.txt
@@ -1,2 +1,2 @@
-flake8>=3.6.0,<4.0.0
+flake8>=5.0.0,<6.0.0
 pytest >=7.1, <8.0
