Not sure why, but it started happening recently, trying to update (some) submodules give a 403.
Some still work, some don't, and more seem to not be working
reedy@tin:/a/common/php-1.22wmf4$ git submodule update extensions/Wikibase/
error: The requested URL returned error: 403 while accessing https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Wikibase.git/info/refs
fatal: HTTP request failed
Unable to fetch in submodule path 'extensions/Wikibase'
reedy@tin:/a/common/php-1.22wmf4$ git submodule update extensions/CodeReview/
reedy@tin:/a/common/php-1.22wmf4$
It's getting annoying and now I'm updating in /h/w/c on fenari, shifting the files across and modifying extensions/FOOBAR/.git
Version: wmf-deployment
Severity: major