news: add something re the setuptools changes

web/news.md

@@ -5,6 +5,15 @@ summary: Important events happening.
 
 This page lists important changes or issues affecting MSYS2 users. We also post them to [Twitter](https://twitter.com/msys2org) and [Mastodon](https://fosstodon.org/@msys2org), including some not-so-important things :)
 
+### 2024-07-28 - MSYS2 support in setuptools v70.0.2
+
+Setuptools v70.0.2 now supports mingw Python and MSYS2 natively. This eliminates
+the need for SETUPTOOLS_USE_DISTUTILS=stdlib when building C extensions,
+enabling "pip install" to just work for most packages without extra steps.
+
+With the stdlib distutils now no longer being required to build packages we can
+continue our work to update to Python 3.12.
+
 ### 2024-07-08 - File conflicts when updating python
 
 Due to the recent Python 3.12 update missing .pyc files, you might see file