chore: use if TYPE_CHECKING: blocks (#2866)

test/test_custom_repair_wheel.py

@@ -1,7 +1,8 @@
+from __future__ import annotations
+
 import subprocess
 import textwrap
 from contextlib import nullcontext as does_not_raise
-from pathlib import Path
 
 import pytest
 
@@ -9,6 +10,10 @@ from test import test_projects
 
 from . import utils
 
+TYPE_CHECKING = False
+if TYPE_CHECKING:
+    from pathlib import Path
+
 basic_project = test_projects.new_c_project()
 basic_project.files["repair.py"] = """
 import shutil