autodoc: Fix test expectation for enum rendering on Python 3.12.3

[jayaddison]

Feature or Bugfix

• Bugfix

Purpose

• Resolve formatting expectations for the default enum sentinel value on Py3.12.3+ to fix a test that succeeeds for Py3.12.2 but fails for Py3.12.3 currently.

Detail

• Adjust some of the Python sys.version_info checks in the test_ext_autodoc test module.

Relates

• Re-resolves Failing test_enum_class with Python 3.13.0a5 #12202 (initially Py3.13-only).

[jayaddison]

I haven't yet confirmed what version(s) of Python this <not-given>-formatted sentinel was implemented for and backported to; it would be good to confirm whether it is only Py3.13+ and Py3.12.3+ that we need to consider.

[AA-Turner]

I haven't yet confirmed what version(s) of Python this <not-given>-formatted sentinel was implemented for and backported to; it would be good to confirm whether it is only Py3.13+ and Py3.12.3+ that we need to consider.

The PR wasn't backported to 3.11. The relevant commits are

• 3.12.2+: python/cpython@d771729
• 3.13.0a5+: python/cpython@13ffd4b

A