Replace some references to gerrit with gitlab
There are some important remaining references in release-scripts. They will be handled separately.
Bug: T321847 Change-Id: I89973ab3a1bbc69d7b7ffafbb3c256e3455811f6
How to register an account on GitLab. Due to spam, new accounts are locked until approved by an admin or the approver bot. Your GitLab account gets automatically approved within one hour if you are a member of Trusted Contributors in Gerrit, or a member of the Trusted-Contributors group in Phabricator and linked your Developer account to your Phabricator account. If none of these apply, you can file an unlock request to expedite access.
Support: mw:GitLab, how to host a project on GitLab, #wikimedia-gitlab on libera.chat, #GitLab on Phabricator.
There are some important remaining references in release-scripts. They will be handled separately.
Bug: T321847 Change-Id: I89973ab3a1bbc69d7b7ffafbb3c256e3455811f6