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

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tests/test_token_blacklist.py

@@ -6,6 +6,7 @@
 from django.db.models import BigAutoField
 from django.test import TestCase
 from django.utils import timezone
+
 from rest_framework_simplejwt.exceptions import TokenError
 from rest_framework_simplejwt.serializers import TokenVerifySerializer
 from rest_framework_simplejwt.settings import api_settings