[8.x](backport #2588) Increase LeaseDuration to create stickiness #2593
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Summary of your changes
Increase LeaderLease to create stickiness in the leader election mechanism.
That way, after a crash of the leader, the new container will still hold the lock and run as a leader.
This will eventually prevent data loss of KSPM findings.
This is an automatic backport of pull request #2588 done by [Mergify](https://mergify.com).