Merge branch 'include-package-sizes-into-db-schema' into 'master'

Add missing packages_size

See merge request gitlab-org/gitlab-ee!12165

db/schema.rb

@@ -2460,6 +2460,7 @@ ActiveRecord::Schema.define(version: 20190426180107) do
     t.bigint "repository_size", default: 0, null: false
     t.bigint "lfs_objects_size", default: 0, null: false
     t.bigint "build_artifacts_size", default: 0, null: false
+    t.bigint "packages_size"
     t.bigint "shared_runners_seconds", default: 0, null: false
     t.datetime "shared_runners_seconds_last_reset"
     t.index ["namespace_id"], name: "index_project_statistics_on_namespace_id", using: :btree