gitserver: Rename doRepoupdate2 to doBackgroundRepoUpdate
Created by: ryanslade
Also move it closer to where it's actually used.
As mentioned in: https://github.com/sourcegraph/sourcegraph/pull/19172
Created by: ryanslade
Also move it closer to where it's actually used.
As mentioned in: https://github.com/sourcegraph/sourcegraph/pull/19172