Rename License::LEGACY_LICENSE_TYPE to License::LICENSE_FILE_TYPE

Also changed the value from `legacy` to `license_file`

ee/app/assets/javascripts/admin/subscriptions/show/constants.js

@@ -88,7 +88,7 @@ export const subscriptionSyncStatus = {
 };
 export const subscriptionTypes = {
   CLOUD: 'cloud',
-  LICENSE_FILE: 'legacy',
+  LICENSE_FILE: 'license_file',
 };
 
 export const subscriptionQueries = {

ee/app/models/license.rb

@@ -8,7 +8,7 @@ class License < ApplicationRecord
   PREMIUM_PLAN = 'premium'
   ULTIMATE_PLAN = 'ultimate'
   CLOUD_LICENSE_TYPE = 'cloud'
-  LEGACY_LICENSE_TYPE = 'legacy'
+  LICENSE_FILE_TYPE = 'license_file'
   ALLOWED_PERCENTAGE_OF_USERS_OVERAGE = (10 / 100.0)
 
   EE_ALL_PLANS = [STARTER_PLAN, PREMIUM_PLAN, ULTIMATE_PLAN].freeze
@@ -561,7 +561,7 @@ class License < ApplicationRecord
   end
 
   def license_type
-    cloud_license? ? CLOUD_LICENSE_TYPE : LEGACY_LICENSE_TYPE
+    cloud_license? ? CLOUD_LICENSE_TYPE : LICENSE_FILE_TYPE
   end
 
   def auto_renew

ee/spec/models/license_spec.rb

@@ -1459,7 +1459,7 @@ RSpec.describe License do
     subject { license.license_type }
 
     context 'when the license is not a cloud license' do
-      it { is_expected.to eq(described_class::LEGACY_LICENSE_TYPE) }
+      it { is_expected.to eq(described_class::LICENSE_FILE_TYPE) }
     end
 
     context 'when the license is a cloud license' do

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

@@ -53,7 +53,7 @@ RSpec.describe 'Activate a subscription' do
     expect(mutation_response['license']).to eq(
       {
         'id' => "gid://gitlab/License/#{created_license.id}",
-        'type' => License::LEGACY_LICENSE_TYPE,
+        'type' => License::LICENSE_FILE_TYPE,
         'plan' => created_license.plan,
         'name' => created_license.licensee_name,
         'email' => created_license.licensee_email,