[Chapel Merge] Update docs version menu to make 1.24 the default

Branch: refs/heads/master
Revision: d0a54f4
Author: bradcray
Log Message:

Merge pull request #17423 from bradcray/update-version-button-for-1.24-release

Update docs version menu to make 1.24 the default version

[rote at this stage of the release, not reviewed]

This is the standard change for once 1.24 becomes the default version of the documentation.

Modified Files:
M doc/util/versionButton.php

Compare: https://github.com/chapel-lang/chapel/compare/598d50e08025...d0a54f46f4cf