Merge branch '6.4' into 7.0

* 6.4:
  [Scheduler] Remove mentions to Symfony 6.4

Author: javiereguiluz

scheduler.rst

@@ -250,10 +250,6 @@ For example::
     The day of month range is ``1-28``, this is to account for February
     which has a minimum of 28 days.
 
-.. versionadded:: 6.4
-
-    Since version 6.4, it is now possible to add and define a timezone as a 3rd argument
-
 Periodical Triggers
 ~~~~~~~~~~~~~~~~~~~
 
@@ -364,11 +360,6 @@ the Messenger component:
 .. image:: /_images/components/scheduler/generate_consume.png
     :alt: Symfony Scheduler - generate and consume
 
-.. tip::
-
-    You can also define your messages via a ``callback`` using the
-    :class:`Symfony\\Component\\Scheduler\\Trigger\\CallbackMessageProvider`.
-
 Debugging the Schedule
 ----------------------