Merge branch 'sh-fix-geo-schema' into 'master'

Geo: Fix incorrect datetime_with_timezone schema

See merge request gitlab-org/gitlab-ee!5664

ee/db/geo/schema.rb

@@ -75,7 +75,7 @@ ActiveRecord::Schema.define(version: 20180510223634) do
     t.boolean "repository_checksum_mismatch", default: false, null: false
     t.boolean "wiki_checksum_mismatch", default: false, null: false
     t.boolean "last_repository_check_failed"
-    t.datetime "last_repository_check_at"
+    t.datetime_with_timezone "last_repository_check_at"
   end
 
   add_index "project_registry", ["last_repository_successful_sync_at"], name: "index_project_registry_on_last_repository_successful_sync_at", using: :btree