Upgrades Django CMS 3.11.5, and Django 4.2

[bethlakshmi]

This is a moderate upgrade to get our dependancies forward enough to maintain for some time.

This is NOT the big update to a way different Django CMS. This is the top of the similar to ours.

To Upgrade djangocms-bootstrap - I had to pull it out of the divio control of add ons into my own code - since divio doesn't give the version we actually need.

Needed to do a bunch of Django based updates to our code including:

• never_cache is now part of method_decorator
• DeleteView is form based so uses form_valid instead of delete - TODO - delete messages related to DeleteViews using UserMessage system, as they will now be different.
• needed to mock a Django CMS page to check our alerts show up on the / page
• change to django recaptcha to a different library - same google recaptcha tool, different django wrapper, different mocking for tests
• re_path (regex path) instead of url in urls.py - url() function is deprecated
• template ifequal is gone - use if instead
• file upload with form post is a bit different (and poorly documented in Django) - had to change pattern in places were user gives us images or files

That was all minor stuff.

So far, I'm stuck at python 3.8 because I can't seem to build a docker that lets me build higher dependancies.

[bethlakshmi]

Of note - aldryn-common was removed. It isn't used on django cms anymore. It was a common util. Also - the django cms bootrap library had to upgrade in such a way that it's now part of OUR package and not the default django-cms stuff that came with divio.

Neither should affect the install, but just writing it down in case it does. Either one would manifest as weirdness when editing pages. What weirdness you ask? No clue ... that's what makes it weird.