fix: replace Optional[X] type hints with X | None (UP045)

eav/models/attribute.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import warnings
-from typing import TYPE_CHECKING, Optional
+from typing import TYPE_CHECKING
 
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import ValidationError
@@ -163,7 +163,7 @@ class Attribute(models.Model):
     :meth:`~eav.registry.EavConfig.get_attributes` method of that entity's config.
     """
 
-    enum_group: ForeignKey[Optional[EnumGroup]] = ForeignKey(
+    enum_group: ForeignKey[EnumGroup | None] = ForeignKey(
         "eav.EnumGroup",
         on_delete=models.PROTECT,
         blank=True,

eav/models/value.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, ClassVar, Optional
+from typing import TYPE_CHECKING, ClassVar
 
 from django.contrib.contenttypes import fields as generic
 from django.contrib.contenttypes.models import ContentType
@@ -136,7 +136,7 @@ class Value(models.Model):
         verbose_name=_("Value JSON"),
     )
 
-    value_enum: ForeignKey[Optional[EnumValue]] = ForeignKey(
+    value_enum: ForeignKey[EnumValue | None] = ForeignKey(
         "eav.EnumValue",
         blank=True,
         null=True,