Update CHANGELOG for #11649

CHANGELOG.md

@@ -30,6 +30,7 @@ BUG FIXES:
 * resource/aws_dynamodb_table: Skip `ResourceNotFoundException` error during deletion [GH-11692]
 * resource/aws_ec2_client_vpn_endpoint: Ensure `dns_servers` attribute is refreshed in Terraform state [GH-11889]
 * resource/aws_ecs_cluster: Delay check of ECS Cluster status during creation for ECS eventual consistency [GH-11701]
+* resource/aws_kinesis_firehose_delivery_stream: Allow processors to be cleared from extended S3 configuration [GH-11649]
 * resource/aws_network_acl_rule: Trigger resource recreation instead of error when same number rule (but opposite ingress/egress) is removed [GH-11544]
 * resource/aws_placement_group: Additional handling for creation and deletion eventual consistency [GH-11671]
 * resource/aws_s3_bucket: Retry read after creation for 404 status code and prevent 2 minute delay for triggering recreation on existing resources deleted outside Terraform [GH-11894]