Add changelog

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

Author: justinjung04

CHANGELOG.md

@@ -30,6 +30,7 @@
 * [ENHANCEMENT] Store Gateway: Add new metrics `cortex_bucket_store_sent_chunk_size_bytes`, `cortex_bucket_store_postings_size_bytes` and `cortex_bucket_store_empty_postings_total`. #5397
 * [ENHANCEMENT] Add jitter to lifecycler heartbeat. #5404
 * [ENHANCEMENT] Store Gateway: Add config `estimated_max_series_size_bytes` and `estimated_max_chunk_size_bytes` to address data overfetch. #5401
+* [ENHANCEMENT] Store Gateway: Apply WaitStabilityMinDuration when syncing blocks #5406
 * [BUGFIX] Ruler: Validate if rule group can be safely converted back to rule group yaml from protobuf message #5265
 * [BUGFIX] Querier: Convert gRPC `ResourceExhausted` status code from store gateway to 422 limit error. #5286
 * [BUGFIX] Alertmanager: Route web-ui requests to the alertmanager distributor when sharding is enabled. #5293