Update Gitaly server and gem to 1.58.0
Update Gitaly server version to v1.58.0, see changelog.
Also switch to the Gitaly proto gem published out of the Gitaly repository itself, see gitaly#1761 (closed).
Update Gitaly server version to v1.58.0, see changelog.
Also switch to the Gitaly proto gem published out of the Gitaly repository itself, see gitaly#1761 (closed).