feat(products): add product_catalog premium integration

## Context

The product catalog is the v2 billing surface and needs an organization
switch to mark which organizations are on it.

## Description

Add product_catalog to Organization::PREMIUM_INTEGRATIONS, generating
organization.product_catalog_enabled? and the with_product_catalog_support
scope, and extending the IntegrationTypeEnum and PremiumIntegrationTypeEnum
GraphQL enums (schema regenerated). No migration: it is a value in the
existing premium_integrations array column.

Author: rsempe

app/models/organization.rb

@@ -160,6 +160,7 @@ class Organization < ApplicationRecord
     granular_lifetime_usage
     order_forms
     revenue_recognition
+    product_catalog
   ].freeze
 
   SECURITY_LOGS_RETENTION_DAYS = 90

schema.graphql

@@ -34,6 +34,7 @@
       granular_lifetime_usage
       order_forms
       revenue_recognition
+      product_catalog
     ]
   end