gh-107446: Fix test_inspect.test_class_with_method_from_other_module when ran multiple times (#107451)

Co-authored-by: Kumar Aditya <[email protected]>

Author: gaogaotiantian

Lib/test/test_inspect.py

@@ -990,6 +990,9 @@ def f(self):
             with DirsOnSysPath(tempdir):
                 import inspect_actual
                 self.assertIn("correct", inspect.getsource(inspect_actual.A))
+                # Remove the module from sys.modules to force it to be reloaded.
+                # This is necessary when the test is run multiple times.
+                sys.modules.pop("inspect_actual")
 
     @unittest.skipIf(
         support.is_emscripten or support.is_wasi,