Rename gitlab-git-http-server mention with gitlab-workhorse

[ci skip]

doc/update/8.2-to-8.3.md

@@ -143,7 +143,7 @@ git diff origin/8-2-stable:lib/support/nginx/gitlab origin/8-3-stable:lib/suppor
 If you are using Apache instead of NGINX please see the updated [Apache templates].
 Also note that because Apache does not support upstreams behind Unix sockets you
-will need to let gitlab-git-http-server listen on a TCP port. You can do this
+will need to let gitlab-workhorse listen on a TCP port. You can do this
 via [/etc/default/gitlab].
 [Apache templates]: https://gitlab.com/gitlab-org/gitlab-recipes/tree/master/web-server/apache