Change log:
4f4bdfc Fix deprecations from SF; prepare for release
6e68bd8 Upgrade dependencies; prepare for release
9d73762 GH-3888: Fix NPE in the RedisLockRegistry.destroy()
63109f7 GH-3878: Fix Javadocs for JdbcChannelMessageStore
326e7ac Fix flowFromSupplier sample in kotlin-dsl.adoc
b7710fc GH-3875: Initialize ClassUtils as early as possible