Doc: Windows set up documentation refers to obsolete URL

[partev]

Documentation

Using python on Windows documentation refers to an old URL for windows releases here:
https://docs.python.org/3.13/using/windows.html

In the sentence: "To make Python available, the CPython team has compiled Windows installers (MSI packages) with every release for many years."

https://www.python.org/download/releases/ should be replaced with https://www.python.org/downloads/

Linked PRs

• gh-115795: Doc: fix obsolete URL #115749
• [3.12] gh-115795: Doc: fix obsolete URL (GH-115749) #115803
• [3.11] gh-115795: Doc: fix obsolete URL (GH-115749) #115804