Fixed #33646 -- Added async-compatible interface to QuerySet.

Thanks Simon Charette for reviews.

Co-authored-by: Carlton Gibson <carlton.gibson@noumenal.es>
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>

tests/async_queryset/models.py

@@ -0,0 +1,11 @@
+from django.db import models
+from django.utils import timezone
+
+
+class RelatedModel(models.Model):
+    simple = models.ForeignKey("SimpleModel", models.CASCADE, null=True)
+
+
+class SimpleModel(models.Model):
+    field = models.IntegerField()
+    created = models.DateTimeField(default=timezone.now)