bpo-42255: Update webbrowser doc for macOS (GH-28144)

Author: corona10

Doc/library/webbrowser.rst

@@ -143,9 +143,9 @@ for the controller classes, all defined in this module.
 +------------------------+-----------------------------------------+-------+
 | ``'windows-default'``  | :class:`WindowsDefault`                 | \(2)  |
 +------------------------+-----------------------------------------+-------+
-| ``'macosx'``           | :class:`MacOSX('default')`              | \(3)  |
+| ``'macosx'``           | :class:`MacOSXOSAScript('default')`     | \(3)  |
 +------------------------+-----------------------------------------+-------+
-| ``'safari'``           | :class:`MacOSX('safari')`               | \(3)  |
+| ``'safari'``           | :class:`MacOSXOSAScript('safari')`      | \(3)  |
 +------------------------+-----------------------------------------+-------+
 | ``'google-chrome'``    | :class:`Chrome('google-chrome')`        |       |
 +------------------------+-----------------------------------------+-------+