As a breakout task from T296022
can the "releng-secrets.git" repository please be moved away from Phabricator?
I am not saying I know where exactly it SHOULD move, but I know we want to shutdown git-ssh.wikimedia.org and it's used by the releng team itself.
Both Gerrit and Gitlab don't allow private repos but releng has their own password store. Can it be merged into that? Or can we help setting up a private repo on some other server, like SRE does with pwstore?
Would be great if this can be relatively high prio since there is not that much time left to deprecate git-ssh and that in turn blocks moving Phabricator to new hardware and that's been stalled for a while.