Return int for minutes when calculated from seconds

app/models/namespace_statistics.rb

@@ -4,6 +4,6 @@ class NamespaceStatistics < ActiveRecord::Base
   validates :namespace, presence: true
 
   def shared_runners_minutes
-    shared_runners_seconds.to_i / 60.0
+    shared_runners_seconds.to_i / 60
   end
 end

app/models/project_statistics.rb

@@ -8,7 +8,7 @@ class ProjectStatistics < ActiveRecord::Base
   STATISTICS_COLUMNS = [:commit_count] + STORAGE_COLUMNS
 
   def shared_runners_minutes
-    shared_runners_seconds.to_i / 60.0
+    shared_runners_seconds.to_i / 60
   end
 
   def total_repository_size