Django 5.0 compatibility: UTC timezone import

Added a try-except block to handle ImportError for Django's timezone.utc in migrations. This ensures compatibility with versions of Django where utc is not available directly under django.utils.timezone and uses datetime.timezone.utc as a fallback. This change maintains forward compatibility and avoids migration errors in different Django environments.

oidc_provider/migrations/0007_auto_20160111_1844.py

@@ -4,8 +4,11 @@ from __future__ import unicode_literals
 
 import datetime
 from django.db import migrations, models
-from django.utils.timezone import utc
 
+try:
+    from django.utils.timezone import utc
+except ImportError:
+    utc = datetime.timezone.utc
 
 class Migration(migrations.Migration):
 

oidc_provider/migrations/0016_userconsent_and_verbosenames.py

@@ -6,8 +6,11 @@ import datetime
 from django.conf import settings
 from django.db import migrations, models
 import django.db.models.deletion
-from django.utils.timezone import utc
 
+try:
+    from django.utils.timezone import utc
+except ImportError:
+    utc = datetime.timezone.utc
 
 class Migration(migrations.Migration):