Adds includeDeleted flag to get remote cluster app and store methods (#28182)

server/channels/store/retrylayer/retrylayer.go

@@ -8909,11 +8909,11 @@ func (s *RetryLayerRemoteClusterStore) Delete(remoteClusterId string) (bool, err
 
 }
 
-func (s *RetryLayerRemoteClusterStore) Get(remoteClusterId string) (*model.RemoteCluster, error) {
+func (s *RetryLayerRemoteClusterStore) Get(remoteClusterId string, includeDeleted bool) (*model.RemoteCluster, error) {
 
 	tries := 0
 	for {
-		result, err := s.RemoteClusterStore.Get(remoteClusterId)
+		result, err := s.RemoteClusterStore.Get(remoteClusterId, includeDeleted)
 		if err == nil {
 			return result, nil
 		}