Checkout Zope and try Python 3.13. [Don't merge]

[mauritsvanrees]

Zope has declared Python 3.13 compatibility so let's see how Plone fares.

[mauritsvanrees]

I already see one error due to some new version pin:

File "...plone.base-2.0.1-py3.10.egg/plone/base/tests/messages.rst", line 39, in messages.rst
Failed example:
    msg.mapping
Expected:
    {'name': 'Plone'}
Got:
    mappingproxy({'name': 'Plone'})

[mauritsvanrees]

@jenkins-plone-org please run jobs

[mauritsvanrees]

Some newer pins are needed for Python 3.13, mostly so that binary wheels are available instead of needing to compile source distributions for packages with C/Rust code. But in general I want to upgrade versions again, though the robotframework ones may be tricky again.

First:

• That test failure on Python 3.10 in plone.base should be fixed. Seems just an easy fix in the test itself at first glance.
• And Zope 5.11 is actually out now, so we should use that.

Those two can be done first. Python 3.13 can happen later. It was just a quick try. Moving on to other work for the moment.