Symfony version(s) affected: master

Description
The ZookeeperStore:putOffEpirationmethod throws an exception (https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Lock/Store/ZookeeperStore.php#L94) whereas Zookeeper locks forever. The purpose ofputOffEpiration` is to extends the lifetime of a lock, by locking forever, the ZookeeperStore support the feature.

Possible Solution
Instead of throwing an exception the store should do nothing like other stores (https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Lock/Store/FlockStore.php#L111)

ping @GaneshChandrasekaran