Fixes: https://github.com/spring-projects/spring-integration/issues/9441 * Upgrade to Hazelcast `5.5` * Deprecate `LeaderInitiator`, `HazelcastLockRegistry` since they cannot be used in Open Source due to Hazelcast CP Subsystem migration under commercial support * Deprecate `HazelcastMembershipListener` and `HazelcastLocalInstanceRegistrar` in favor of Hazelcast `Cluster` API. * Mention changes in the docs