Update the stage of Cloud Connector docs

doc/administration/application_settings_cache.md

doc/administration/monitoring/ip_allowlist.md

doc/administration/monitoring/performance/index.md

doc/administration/monitoring/performance/performance_bar.md

doc/administration/monitoring/prometheus/gitlab_exporter.md

doc/administration/monitoring/prometheus/web_exporter.md

doc/administration/sidekiq/sidekiq_memory_killer.md

doc/development/cached_queries.md

doc/development/cloud_connector/code_suggestions_for_sm.md

doc/development/real_time.md