Docs incorrect re. preequisites - errors on 5.20

[michela]

Re. https://neo4j.com/labs/genai-ecosystem/llm-graph-builder-deployment/

You will need to have a Neo4j Database V5.18 or later with APOC installed to use this Knowledge Graph Builder.

I think your documentation is out-of-date and incorrect. V5.20 no longer works due to this app using CALL (entities)