chromium: fix get-commit-message.py by pointing it a newer atom feed

We previously used
<https://chromereleases.googleblog.com/feeds/posts/default>, which is
still listed alongside the new one (in
<https://chromereleases.googleblog.com>'s html) but does not seem to
receive updates since 2024-02-29.

No idea why.

pkgs/applications/networking/browsers/chromium/get-commit-message.py

@@ -13,7 +13,8 @@ from collections import OrderedDict
 import feedparser
 import requests
 
-feed = feedparser.parse('https://chromereleases.googleblog.com/feeds/posts/default')
+# Official rss/atom feed taken from <https://chromereleases.googleblog.com/>'s html source (<link type="application/atom+xml">)
+feed = feedparser.parse('https://www.blogger.com/feeds/8982037438137564684/posts/default')
 html_tags = re.compile(r'<[^>]+>')
 target_version = sys.argv[1] if len(sys.argv) == 2 else None