Update testing/test_collection.py

Co-authored-by: Ran Benita <[email protected]>

Author: gomri15

testing/test_collection.py

@@ -2767,7 +2767,7 @@ def test1(y, x):
         result = pytester.runpytest()
         self._assert_duplicate_msg(result, expected_indices)
 
-    def test_cli_overrides_ini_false(self, pytester: Pytester):
+    def test_cli_overrides_ini_false(self, pytester: Pytester) -> None:
         """CLI True should override ini False."""
         pytester.makeini(
             """