Add IP Address to admin runners table (#43489)

app/views/admin/runners/_runner.html.haml

@@ -16,6 +16,8 @@
     = runner.description
   %td
     = runner.version
+  %td
+    = runner.ip_address
   %td
     - if runner.shared?
       n/a

app/views/admin/runners/index.html.haml

@@ -60,6 +60,7 @@
               %th Runner token
               %th Description
               %th Version
+              %th IP Address
               %th Projects
               %th Jobs
               %th Tags