ISPN-4942 Revert parent back to infinispan-bom

* Remove Import-Package for infinispan package brought in ISPN-5048
ISPN-5029 Make FileLookup backwards compatible with 6.x
ISPN-5017 Include the CLI uberjar in the distribution zip
ISPN-5069 Upgrade to protostream-2.0.3.Final
ISPN-4444 After state transfer, a node is able to read keys it no longer owns from its data container

* mark the keys stored as L1
* this avoid read the keys that are going to be invalidated during the ST