[pre-commit.ci] auto fixes from pre-commit.com hooks

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src/unfold/contrib/filters/admin/dropdown_filters.py

@@ -1,4 +1,5 @@
-from typing import Any, Dict, Generator, List, Tuple, Type
+from collections.abc import Generator
+from typing import Any, Dict, List, Tuple, Type
 
 from django.contrib import admin
 from django.contrib.admin.views.main import ChangeList

src/unfold/contrib/filters/admin/mixins.py

@@ -1,4 +1,5 @@
-from typing import Any, Dict, Generator, List, Optional, Tuple
+from collections.abc import Generator
+from typing import Any, Dict, List, Optional, Tuple
 
 from django.contrib.admin.views.main import ChangeList
 from django.core.validators import EMPTY_VALUES