Run pyupgrade for Python 3.9+

Apply pyupgrade for Python 3.9+

rtree/index.py

@@ -6,7 +6,8 @@
 import pickle
 import pprint
 import warnings
-from typing import Any, Iterator, Literal, Sequence, overload
+from collections.abc import Iterator, Sequence
+from typing import Any, Literal, overload
 
 from . import core
 from .exceptions import RTreeError

tests/conftest.py

@@ -2,7 +2,7 @@
 
 import os
 import shutil
-from typing import Iterator
+from collections.abc import Iterator
 
 import py
 import pytest

tests/test_index.py

@@ -5,7 +5,7 @@
 import sys
 import tempfile
 import unittest
-from typing import Iterator
+from collections.abc import Iterator
 
 import numpy as np
 import pytest

tests/test_tpr.py

@@ -3,8 +3,9 @@
 import os
 import unittest
 from collections import defaultdict, namedtuple
+from collections.abc import Iterator
 from math import ceil
-from typing import Any, Iterator
+from typing import Any
 
 import numpy as np
 from numpy.random import default_rng