chore: avoid importing TYPE_CHECKING (#2864)

Assisted-by: OpenCode:glm-5.1

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

unit_test/main_tests/main_options_test.py

@@ -3,7 +3,6 @@ import tomllib
 from collections.abc import Mapping
 from fnmatch import fnmatch
 from pathlib import Path
-from typing import TYPE_CHECKING
 
 import pytest
 
@@ -15,6 +14,7 @@ from cibuildwheel.selector import BuildSelector, EnableGroup
 from cibuildwheel.util import resources
 from cibuildwheel.util.packaging import DependencyConstraints
 
+TYPE_CHECKING = False
 if TYPE_CHECKING:
     from .conftest import ArgsInterceptor