ci: auto fixes from pre-commit hooks

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

tests/test_forms.py

@@ -1,5 +1,6 @@
 from django.test import TestCase
 from django.utils.safestring import SafeString
+
 from django_nh3.forms import Nh3Field
 
 # import urls to get coverage

tests/test_models.py

@@ -2,6 +2,7 @@
 from django.forms import ModelForm
 from django.test import TestCase
 from django.utils.safestring import SafeString
+
 from django_nh3.models import Nh3Field
 
 

tests/test_settings.py

@@ -1,6 +1,7 @@
 from unittest.mock import patch
 
 from django.test import TestCase
+
 from django_nh3.utils import get_nh3_default_options
 
 from .constants import ALLOWED_ATTRIBUTES, ALLOWED_TAGS, STRIP_COMMENTS