Use warning for locked runners:

Feedback from: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4961#note_12794221

Use warning for locked runners:
59413153 · Lin Jen-Shin · 23a3ce94 · 59413153 · 59413153
Commit 59413153 authored 8 years ago by Lin Jen-Shin
--- a/app/views/admin/runners/_runner.html.haml
+++ b/app/views/admin/runners/_runner.html.haml
@@ -5,7 +5,7 @@
    - else
      %span.label.label-info specific
    - if runner.locked?
-      %span.label.label-danger locked
+      %span.label.label-warning locked
    - unless runner.active?
      %span.label.label-danger paused

--- a/app/views/admin/runners/index.html.haml
+++ b/app/views/admin/runners/index.html.haml
@@ -40,7 +40,7 @@
          %span.label.label-info specific
          \- run builds from assigned projects
        %li
-          %span.label.label-danger locked
+          %span.label.label-warning locked
          \- runner cannot be assigned to other projects
        %li
          %span.label.label-danger paused