[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

debug_toolbar/decorators.py

@@ -8,9 +8,11 @@
 try:
     from django.contrib.auth.decorators import login_not_required
 except ImportError:
+
     def login_not_required(func):
         return func
 
+
 def require_show_toolbar(view):
     @functools.wraps(view)
     @login_not_required