[5.0.x] Added updating the Django release process on Trac to release steps.

Backport of 7c1cf585e80114b6e531b40bd2954406d033afe3 from main

docs/internals/howto-release-django.txt

@@ -447,6 +447,10 @@ You're almost done! All that's left to do now is:
 
    __ https://github.com/django/code.djangoproject.com/blob/main/trac-env/conf/trac.ini
 
+#. If it's a final release, update the current stable branch and remove the
+   pre-release branch in the `Django release process
+   <https://code.djangoproject.com/#Djangoreleaseprocess>`_ on Trac.
+
 #. If this was a security release, update :doc:`/releases/security` with
    details of the issues addressed.
 
@@ -494,6 +498,10 @@ need to be done by the releaser.
    <https://github.com/pypa/trove-classifiers/issues/29>`_. For example
    ``Framework :: Django :: 3.1``.
 
+#. Update the current branch under active development and add pre-release
+   branch in the `Django release process
+   <https://code.djangoproject.com/#Djangoreleaseprocess>`_ on Trac.
+
 Notes on setting the VERSION tuple
 ==================================