[Bug]: unmarshal error during upgrade from v1.18.3 to v1.19.0 with same scheme version for ReplicationGroup.elasticache.aws.upbound.io/v1beta2

[Bug]: unmarshal error during upgrade from v1.18.3 to v1.19.0 with same scheme version for ReplicationGroup.elasticache.aws.upbound.io/v1beta2 #529