gh-137058: use __STDC_VERSION__ >= 202311L instead of __STDC_VERSION__ > 201710L

[abdoulrasheed]

Updates the preprocessor check in pyport.h to use C23 __STDC_VERSION__ value (202311L)

Issue: pyport.h: use STDC_VERSION >= 202311L instead of STDC_VERSION > 201710L

• Issue: pyport.h: use __STDC_VERSION__ >= 202311L instead of __STDC_VERSION__ > 201710L #137058

[python-cla-bot]

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[picnixz]

@hugovk Your pick on whether you want this to be backported. It's not really an issue but it helps reducing the diff between 3.14 and 3.15.

[vstinner]

IMO it's worth it to backport the change, but it can wait for Python 3.14.1.

[miss-islington-app]

Thanks @abdoulrasheed for the PR, and @picnixz for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14.
🐍🍒⛏🤖

[miss-islington-app]

Sorry, @abdoulrasheed and @picnixz, I could not cleanly backport this to 3.14 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker cfd6da849a3c40904cddd23ae1700605877673fb 3.14

[vstinner]

I created #137409 to update _Py_NULL in the 3.14 branch.

[serhiy-storchaka]

Reminder about backporting. @abdoulrasheed @picnixz

[vstinner]

Reminder about backporting. @abdoulrasheed @picnixz

I created a backport to 3.14. Do you mean that we should backport the change to 3.13 as well?

[serhiy-storchaka]

There was only label for 3.14.