Add plan limit for Terraform Module package file size

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/321102

changelogs/unreleased/321102-terraform-module-registry-iteration-1.yml

+---
+title: Add plan limit for Terraform Module package file size
+merge_request: 56414
+author:
+type: added

db/migrate/20210305145622_add_terraform_module_max_file_size_to_plan_limits.rb

+# frozen_string_literal: true
+
+class AddTerraformModuleMaxFileSizeToPlanLimits < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  def change
+    add_column :plan_limits, :terraform_module_max_file_size, :bigint, default: 1.gigabyte, null: false
+  end
+end

db/schema_migrations/20210305145622

+be22d5a1c61cbb8b2396a351951ffcee54fbf37dc5ef5f899576a36a14200e75
\ No newline at end of file

db/structure.sql

@@ -15754,7 +15754,8 @@ CREATE TABLE plan_limits (
     ci_pipeline_deployments integer DEFAULT 500 NOT NULL,
     pull_mirror_interval_seconds integer DEFAULT 300 NOT NULL,
     daily_invites integer DEFAULT 0 NOT NULL,
-    rubygems_max_file_size bigint DEFAULT '3221225472'::bigint NOT NULL
+    rubygems_max_file_size bigint DEFAULT '3221225472'::bigint NOT NULL,
+    terraform_module_max_file_size bigint DEFAULT 1073741824 NOT NULL
 );
 
 CREATE SEQUENCE plan_limits_id_seq