[Chapel Merge] Chapel 1.25 `CHANGES.md` updates

Branch: refs/heads/main
Revision: 3e50029
Author: bradcray
Log Message:

Merge pull request #18366 from bradcray/changes-1.25

Chapel 1.25 CHANGES.md updates

[reviewed by @ronawho and @mstrout]

This is the list of CHANGES for Chapel 1.25. Thanks to everyone for all their hard work!

Modified Files:
M CHANGES.md

Compare: https://github.com/chapel-lang/chapel/compare/975007fca33a...3e50029c6472