Docs: alphabetise bullets by module name

[hugovk]

Documentation

Re: #106540 (comment)

Look at:

• https://docs.python.org/3.13/whatsnew/3.13.html#pending-removal-in-python-3-14
• https://docs.python.org/3.13/whatsnew/3.13.html#pending-removal-in-python-3-15
• https://docs.python.org/3.13/whatsnew/3.13.html#pending-removal-in-python-3-16
• https://docs.python.org/3.13/whatsnew/3.13.html#pending-removal-in-future-versions

Each bullet point begins with the relevant module name, and the bullets are alphabetised.

Let's do the same for:

• https://docs.python.org/3.13/whatsnew/3.13.html#deprecated
• https://docs.python.org/3.13/whatsnew/3.12.html#deprecated
• https://docs.python.org/3.13/whatsnew/3.12.html#pending-removal-in-python-3-14
• https://docs.python.org/3.13/whatsnew/3.12.html#removed

Linked PRs

• gh-106976:alphabetise bullets by module name task1 #106982
• gh-106976: alphabetise bullets by module name task2-3 #107005
• [3.12] gh-106976: alphabetise bullets by module name task2-3 (GH-107005) #107106

[littlebutt]

I made some changes on the page What’s New In Python 3.13-Deprecated. Is it the way we want? If it is OK, I am glad to modify the other pages

[littlebutt]

I found some changes cannot be classified into spesific modules so I just left them alone.

[littlebutt]

Actually this issue can be closed since the task 4 is included in the last commit. I forgot to change the commit message. Sorry and this is The preview page.

[hugovk]

Good stuff, thank you for your contributions!