Merge branch 'increase-bulk-indexer-batch-sizes' into 'master'

Increase ProcessBookkeepingService batch to 10_000

See merge request gitlab-org/gitlab!30817

ee/app/services/elastic/process_bookkeeping_service.rb

@@ -4,7 +4,7 @@ module Elastic
   class ProcessBookkeepingService
     REDIS_SET_KEY = 'elastic:incremental:updates:0:zset'
     REDIS_SCORE_KEY = 'elastic:incremental:updates:0:score'
-    LIMIT = 1000
+    LIMIT = 10_000
 
     class << self
       # Add some records to the processing queue. Items must be serializable to

ee/changelogs/unreleased/increase-bulk-indexer-batch-sizes.yml

+---
+title: Increase ProcessBookkeepingService batch to 10_000
+merge_request: 30817
+author:
+type: changed