Update dependency flake8 to v7

renovate[bot] · web-flow · commit 377cecdb514e · 2024-01-08T00:44:25.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -5,7 +5,7 @@ django-oauth-toolkit==2.3.0
 django-phonenumber-field==7.3.0
 Django==4.2.9
 djangorestframework==3.14.0
-flake8==6.0.0
+flake8==7.0.0
 gunicorn==20.1.0
 icalendar==5.0.11
 ipython==8.19.0
