Add CHANGELOG

Signed-off-by: Saswata Mukherjee <saswataminsta@yahoo.com>

CHANGELOG.md

@@ -28,6 +28,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 - [#4856](https://github.com/thanos-io/thanos/pull/4856) Mixin: Add Query Frontend Grafana dashboard.
 - [#4874](https://github.com/thanos-io/thanos/pull/4874) Query: Add `--endpoint-strict` flag to statically configure Thanos API server endpoints. It is similar to `--store-strict` but supports passing any Thanos gRPC APIs: StoreAPI, MetadataAPI, RulesAPI, TargetsAPI and ExemplarsAPI.
 - [#4868](https://github.com/thanos-io/thanos/pull/4868) Rule: Support ruleGroup limit introduced by Prometheus v2.31.0.
+- [#4897](https://github.com/thanos-io/thanos/pull/4897) Querier: Add validation for querier address flags. 
 
 ### Fixed