Update admin health check page

Resources

FE @jivanvl

Description

We have included new and more modern health check API endpoints, and we should update the admin area UI to point to them.

Updated endpoints were added here: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10416

Existing screen that references the old endpoints:

Proposal

Update links to point to the new endpoints.

mentioned in merge request !10565 (merged)

changed milestone to %Backlog

removed Deliverable label

added Deliverable label

changed milestone to %9.3

added frontend label

assigned to @jivanvl

mentioned in merge request !11388 (merged)

closed via merge request !11388 (merged)