* Fix LockRegLeaderIn for interrupted Thread.sleep
https://build.spring.io/browse/INT-FATS5IC-517
If current thread is interrupted, the `Thread.sleep()` interrupts
immediately.
In the catch block of the main loop in the `LockRegistryLeaderInitiator`
we have such a dangerous `sleep()` and don't restart election in this
candidate any more
* Move `Thread.sleep()` to else after checking the current thread for
interrupted state
* Remove `LongRunningIntegrationTest` rule from the
`RedisLockRegistryLeaderInitiatorTests` since it now works much faster
after proper `busy-wait` handling
**Cherry-pick to master**
* Ignore interruption on the sleep i catch and move on with loop
7f898a55ce