Multi-node deployments with Experimental Neo4J Handler may duplicate object IDs

**Describe the bug**
Multi-node deployments using the experimental Neo4J handler may duplicate object IDs, leading to data overwrites when under load

**To Reproduce**
Create a multi-node deployment behind a load-balancer (e.g. HAProxy)

**Expected behavior**
All deployments should create unique object IDs regardless of the data source

**Additional context**
We should probably move to a UUID based ID generation ASAP.