Add missing modules/submodules pending removal in 3.12

Author: CAM-Gerlach

Doc/whatsnew/3.11.rst

@@ -1623,7 +1623,12 @@ C APIs pending removal are
 :ref:`listed separately <whatsnew311-c-api-pending-removal>`.
 
 * :envvar:`PYTHONTHREADDEBUG`
+* The :mod:`asynchat` module
+* The :mod:`asyncore` module
 * The entire :ref:`distutils package <distutils-deprecated>`
+* The :mod:`imp` module
+* The :class:`typing.io <typing.IO>` namespace
+* The :class:`typing.re <typing.Pattern>` namespace
 * :func:`!cgi.log`
 * :func:`importlib.find_loader`
 * :meth:`importlib.abc.Loader.module_repr`