ui: Add ...attributes to healthcheck-info (#8120)

ui-v2/app/components/healthcheck-list/index.hbs

@@ -1,4 +1,4 @@
-<div>
+<div ...attributes>
   <ul>
 {{#each items as |item| }}
     <li class={{concat 'healthcheck-output ' item.Status}}>

ui-v2/tests/acceptance/dc/services/instances/proxyinfo.feature

@@ -1,5 +1,5 @@
 @setupApplicationTest
-Feature: dc / services / instances / show: Proxy Info tab
+Feature: dc / services / instances / proxyinfo: Proxy Info tab
   Background:
     Given 1 datacenter model with the value "dc1"
   Scenario: A Service instance without a Proxy does not display Proxy Info tab
@@ -33,7 +33,6 @@ Feature: dc / services / instances / show: Proxy Info tab
 
     Then the url should be /dc1/services/service-0/instances/node-0/service-0-with-id/proxy
     And I see proxyInfoIsSelected on the tabs
-  @notNamespaceable
   Scenario: A Proxy with health checks, upstreams, and exposed paths displays all info
     Given 2 instance models from yaml
     ---