Adds block_changes_at to LicenseType in GraphQL

Includes block_changes_at in LicenseType to provide frontend with
info regarding subscription grace period.

doc/api/graphql/reference/index.md

@@ -7777,6 +7777,7 @@ Represents the current license.
 | ---- | ---- | ----------- |
 | <a id="currentlicenseactivatedat"></a>`activatedAt` | [`Date`](#date) | Date when the license was activated. |
 | <a id="currentlicensebillableuserscount"></a>`billableUsersCount` | [`Int`](#int) | Number of billable users on the system. |
+| <a id="currentlicenseblockchangesat"></a>`blockChangesAt` | [`Date`](#date) | Date, including grace period, when licensed features will be blocked. |
 | <a id="currentlicensecompany"></a>`company` | [`String`](#string) | Company of the licensee. |
 | <a id="currentlicenseemail"></a>`email` | [`String`](#string) | Email of the licensee. |
 | <a id="currentlicenseexpiresat"></a>`expiresAt` | [`Date`](#date) | Date when the license expires. |
@@ -9822,6 +9823,7 @@ Represents an entry from the Cloud License history.
 | Name | Type | Description |
 | ---- | ---- | ----------- |
 | <a id="licensehistoryentryactivatedat"></a>`activatedAt` | [`Date`](#date) | Date when the license was activated. |
+| <a id="licensehistoryentryblockchangesat"></a>`blockChangesAt` | [`Date`](#date) | Date, including grace period, when licensed features will be blocked. |
 | <a id="licensehistoryentrycompany"></a>`company` | [`String`](#string) | Company of the licensee. |
 | <a id="licensehistoryentryemail"></a>`email` | [`String`](#string) | Email of the licensee. |
 | <a id="licensehistoryentryexpiresat"></a>`expiresAt` | [`Date`](#date) | Date when the license expires. |

ee/app/graphql/types/admin/cloud_licenses/license_type.rb

@@ -36,6 +36,9 @@ module Types
           field :expires_at, ::Types::DateType, null: true,
                 description: 'Date when the license expires.'
 
+          field :block_changes_at, ::Types::DateType, null: true,
+                description: 'Date, including grace period, when licensed features will be blocked.'
+
           field :activated_at, ::Types::DateType, null: true,
                 description: 'Date when the license was activated.'
 

ee/spec/requests/api/graphql/mutations/gitlab_subscriptions/activate_spec.rb

@@ -60,6 +60,7 @@ RSpec.describe 'Activate a subscription' do
         'company' => created_license.licensee_company,
         'startsAt' => created_license.starts_at.to_s,
         'expiresAt' => created_license.expires_at.to_s,
+        'blockChangesAt' => created_license.block_changes_at.to_s,
         'activatedAt' => created_license.created_at.to_date.to_s,
         'lastSync' => nil,
         'usersInLicenseCount' => nil,

ee/spec/support/shared_examples/graphql/types/admin/cloud_licenses/license_type_shared_examples.rb

@@ -3,7 +3,7 @@
 RSpec.shared_examples_for 'license type fields' do |keys|
   context 'with license type fields' do
     let(:license_fields) do
-      %w[id type plan name email company starts_at expires_at activated_at users_in_license_count]
+      %w[id type plan name email company starts_at expires_at block_changes_at activated_at users_in_license_count]
     end
 
     it { expect(described_class).to include_graphql_fields(*license_fields) }