Add back deprecated Geo queues that were removed in 10.6

We need to drain these queues before we can remove them completely.
Since the Log Cursor may be writing to these queues until it is
restarted, we can't guarantee that a Redis migration will properly
migrate everything.

Closes #5219

app/workers/all_queues.yml

@@ -107,6 +107,13 @@
 - web_hook
 
 # EE-specific queues
+
+# Deprecated queues: remove after 10.7
+- geo_base_scheduler
+- geo_file_download
+- geo_project_sync
+- geo_repository_shard_sync
+
 - cronjob:clear_shared_runners_minutes
 - cronjob:geo_file_download_dispatch
 - cronjob:geo_metrics_update

config/sidekiq_queues.yml

@@ -88,3 +88,9 @@
   - [export_csv, 1]
   - [object_storage_upload, 1]
   - [object_storage, 1]
+
+  # Deprecated queues: Remove after 10.7
+  - geo_base_scheduler
+  - geo_file_download
+  - geo_project_sync
+  - geo_repository_shard_sync

spec/workers/every_sidekiq_worker_spec.rb

 require 'spec_helper'
 
 describe 'Every Sidekiq worker' do
+  DEPRECATED_QUEUES = %w(geo_base_scheduler geo_file_download geo_project_sync geo_repository_shard_sync).freeze
+
   it 'does not use the default queue' do
     expect(Gitlab::SidekiqConfig.workers.map(&:queue)).not_to include('default')
   end
@@ -16,10 +18,10 @@ describe 'Every Sidekiq worker' do
     worker_queues << ActionMailer::DeliveryJob.queue_name
     worker_queues << 'default'
 
-    missing_from_file = worker_queues - file_worker_queues
+    missing_from_file = worker_queues - file_worker_queues - DEPRECATED_QUEUES
     expect(missing_from_file).to be_empty, "expected #{missing_from_file.to_a.inspect} to be in app/workers/all_queues.yml"
 
-    unncessarily_in_file = file_worker_queues - worker_queues
+    unncessarily_in_file = file_worker_queues - worker_queues - DEPRECATED_QUEUES
     expect(unncessarily_in_file).to be_empty, "expected #{unncessarily_in_file.to_a.inspect} not to be in app/workers/all_queues.yml"
   end