Fix whitehall overdue publications check.
Fix whitehall overdue publications check.

When the healthcheck path was hidden, it also hid this path.  This needs
to be open because the check is run from the monitoring machine, and
therefore goes through nginx.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet