Update Praefect load balancer note

Now that https://gitlab.com/gitlab-org/gitlab/-/merge_requests/73302
is merged a long timeout is no longer necessary for Praefect.

Let's replace that note with one on the recommended LB strategy.

doc/administration/gitaly/praefect.md

@@ -883,9 +883,9 @@ of choice already. Some examples include [HAProxy](https://www.haproxy.org/)
 Big-IP LTM, and Citrix Net Scaler. This documentation outlines what ports
 and protocols you need configure.
 
-WARNING:
-Long-running background jobs can maintain an idle connection with Praefect for up 6 hours. Set your load balancer timeout to be at least
-6 hours long.
+NOTE:
+We recommend the equivalent of HAProxy `leastconn` load-balancing strategy because long-running operations (for example,
+clones) keep some connections open for extended periods.
 
 | LB Port | Backend Port | Protocol |
 |:--------|:-------------|:---------|