Add changelog

Signed-off-by: Justin Jung <[email protected]>

CHANGELOG.md

@@ -40,6 +40,7 @@
 * [FEATURE] Store Gateway: Add `-blocks-storage.bucket-store.max-inflight-requests` for store gateways to reject further requests upon reaching the limit. #5553
 * [FEATURE] Store Gateway: Add `cortex_bucket_store_block_load_duration_seconds` histogram to track time to load blocks. #5580
 * [FEATURE] AlertManager: Add `cortex_alertmanager_dispatcher_aggregation_groups` and `cortex_alertmanager_dispatcher_alert_processing_duration_seconds` metrics for dispatcher. #5592
+* [FEATURE] Query Frontend/Scheduler: Add high-priority query support. #5605
 * [ENHANCEMENT] Distributor/Ingester: Add span on push path #5319
 * [ENHANCEMENT] Support object storage backends for runtime configuration file. #5292
 * [ENHANCEMENT] Query Frontend: Reject subquery with too small step size. #5323