pythongh-94309: Deprecate typing.Hashable/Sized

To be consistent with PEP 585, deprecated aliases should not raise any DeprecationWarning.

Author: MonadChains

Doc/library/typing.rst

@@ -2215,6 +2215,9 @@ Corresponding to other types in :mod:`collections.abc`
 
    An alias to :class:`collections.abc.Hashable`.
 
+   .. deprecated:: 3.12
+      :class:`collections.abc.Hashable` should be directly imported from the original module.
+
 .. class:: Reversible(Iterable[T_co])
 
    A generic version of :class:`collections.abc.Reversible`.
@@ -2227,6 +2230,9 @@ Corresponding to other types in :mod:`collections.abc`
 
    An alias to :class:`collections.abc.Sized`.
 
+   .. deprecated:: 3.12
+      :class:`collections.abc.Sized` should be directly imported from the original module.
+
 Asynchronous programming
 """"""""""""""""""""""""