Add retry block for unrelated failing spec

spec/support/components/work_packages/relations.rb

@@ -222,6 +222,7 @@ module Components
           row = ".wp-row-#{work_package.id}-table"
 
           SeleniumHubWaiter.wait
+          retry_block do
             find(row).hover
             find("#{row} .wp-table-action--unlink").click
           end
@@ -229,3 +230,4 @@ module Components
       end
     end
   end
+end