release-20.4:Backport!5470

Merged EKbfh requested to merge cherry-pick-703e7f2e into release-20.4

Bump liftbridge version to 1.6.0

See merge request !5470 (merged)

(cherry picked from commit 703e7f2e)

7ffd5966 Bump liftbridge version to 1.6.0

Merge request reports