Update sponsors/tests/test_management_command.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: JacobCoffee

sponsors/tests/test_management_command.py

@@ -211,7 +211,7 @@ def test_reset_sponsorship_benefits_from_2025_to_2026(self):
         sponsorship_ct = ContentType.objects.get_for_model(sponsorship)
         # Use TextAsset.objects.create() instead of baker.make() because
         # model_bakery doesn't support GenericForeignKey fields
-        asset_2025 = TextAsset.objects.create(
+        TextAsset.objects.create(
             content_type=sponsorship_ct,
             object_id=sponsorship.id,
             internal_name="conference_passes_code_2025",