Patch addAction for Qt < 6.4

Some 6.3.2 builds still seem to lack the flexibility.

Author: StSav012

qtpy/QtWidgets.py

@@ -14,11 +14,8 @@
 from . import PYQT5, PYQT6, PYSIDE2, PYSIDE6
 from . import QT_VERSION as _qt_version
 from ._utils import (
-    add_action,
     getattr_missing_optional_dep,
     possibly_static_exec,
-    set_shortcut,
-    set_shortcuts,
     static_method_kwargs_wrapper,
 )
 
@@ -212,8 +209,9 @@ def __getattr__(name):
         "directory",
     )
 
-# Make `addAction` compatible with Qt6 >= 6.3
-if PYQT5 or PYSIDE2 or parse(_qt_version) < parse("6.3"):
+# Make `addAction` compatible with Qt6 >= 6.4
+if PYQT5 or PYSIDE2 or parse(_qt_version) < parse("6.4"):
+    from ._utils import add_action
 
     class _QMenu(QMenu):
         old_add_action = QMenu.addAction