Merge branch 'fix/gb/improve-autocancel-pipelines-migraton' into 'master'

Disable statement timeout in CI pipelines migration

See merge request !12268

db/post_migrate/20170502070007_enable_auto_cancel_pending_pipelines_for_all.rb

@@ -7,6 +7,8 @@ class EnableAutoCancelPendingPipelinesForAll < ActiveRecord::Migration
   DOWNTIME = false
 
   def up
+    disable_statement_timeout
+
     update_column_in_batches(:projects, :auto_cancel_pending_pipelines, 1)
   end