Merge pull request #1200 from django-wiki/dependabot/pip/flake8-gte-3…

….7-and-lt-5.1

Update flake8 requirement from <4.1,>=3.7 to >=3.7,<5.1

setup.py

@@ -45,7 +45,7 @@ def get_path(fname):
 ]
 
 test_lint_requirements = [
-    "flake8>=3.7,<4.1",
+    "flake8>=3.7,<5.1",
     # Somewhat pin black, such that older code bases can
     # be verified CI without linting them lots
     "black>=22.3.0,<22.7",