Only delete data from Elasticsearch 30 days after subscription expires

Changelog: changed
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/72923
EE: true

ee/app/models/gitlab_subscription.rb

@@ -31,9 +31,9 @@ class GitlabSubscription < ApplicationRecord
 
   scope :preload_for_refresh_seat, -> { preload([{ namespace: :route }, :hosted_plan]) }
 
-  DAYS_AFTER_EXPIRATION_BEFORE_REMOVING_FROM_INDEX = 7
+  DAYS_AFTER_EXPIRATION_BEFORE_REMOVING_FROM_INDEX = 30
 
-  # We set a 7 days as the threshold for expiration before removing them from
+  # We set a threshold for expiration before removing them from
   # the index
   def self.yield_long_expired_indexed_namespaces(&blk)
     # Since the gitlab_subscriptions table will keep growing in size and the

ee/spec/models/gitlab_subscription_spec.rb

@@ -476,8 +476,8 @@ RSpec.describe GitlabSubscription do
     let_it_be(:not_expired_subscription1) { create(:gitlab_subscription, :bronze, end_date: Date.today + 2) }
     let_it_be(:not_expired_subscription2) { create(:gitlab_subscription, :bronze, end_date: Date.today + 100) }
     let_it_be(:recently_expired_subscription) { create(:gitlab_subscription, :bronze, end_date: Date.today - 4) }
-    let_it_be(:expired_subscription1) { create(:gitlab_subscription, :bronze, end_date: Date.today - 8) }
-    let_it_be(:expired_subscription2) { create(:gitlab_subscription, :bronze, end_date: Date.today - 10) }
+    let_it_be(:expired_subscription1) { create(:gitlab_subscription, :bronze, end_date: Date.today - 31) }
+    let_it_be(:expired_subscription2) { create(:gitlab_subscription, :bronze, end_date: Date.today - 40) }
 
     before do
       allow(::Gitlab).to receive(:dev_env_or_com?).and_return(true)

ee/spec/workers/elastic_remove_expired_namespace_subscriptions_from_index_cron_worker_spec.rb

@@ -8,8 +8,8 @@ RSpec.describe ElasticRemoveExpiredNamespaceSubscriptionsFromIndexCronWorker do
   let(:not_expired_subscription1) { create(:gitlab_subscription, :bronze, end_date: Date.today + 2) }
   let(:not_expired_subscription2) { create(:gitlab_subscription, :bronze, end_date: Date.today + 100) }
   let(:recently_expired_subscription) { create(:gitlab_subscription, :bronze, end_date: Date.today - 4) }
-  let(:expired_subscription1) { create(:gitlab_subscription, :bronze, end_date: Date.today - 8) }
-  let(:expired_subscription2) { create(:gitlab_subscription, :bronze, end_date: Date.today - 10) }
+  let(:expired_subscription1) { create(:gitlab_subscription, :bronze, end_date: Date.today - 31) }
+  let(:expired_subscription2) { create(:gitlab_subscription, :bronze, end_date: Date.today - 35) }
 
   before do
     allow(::Gitlab).to receive(:dev_env_or_com?).and_return(true)