Merge branch '8378-tracing-empty-empty-state-image-fails-to-load' into 'master'

Resolve "Tracing empty empty state image fails to load"

Closes #8378

See merge request gitlab-org/gitlab-ee!8390

ee/app/views/projects/tracings/show.html.haml

@@ -5,7 +5,7 @@
   .row.empty-state
     .col-12
       .svg-content
-        = image_tag 'illustrations/tracing_empty.svg', style: 'max-height: 254px'
+        = image_tag 'illustrations/monitoring/tracing.svg', style: 'max-height: 254px'
 
     .col-12
       .text-content