GGP-460: testing with @neo4j-labs/temp-dbs

[nossila]

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Proof of concept of using @neo4j-labs/temp-dbs for creating disposable databases for testing.

How to test:

1. Make sure you have a Neo4j database running locally, you can use Neo4j Desktop for this. Make sure to select at least version 4
2. Export the right credentials to your environment like:

export NEO4J_URI="bolt://localhost:7687"
export NEO4J_USER="neo4j"
export NEO4J_PASSWORD="123456"
export NEO4J_VERSION="4.2.1"

3. Install nodejs dependencies npm install
4. Run tests npm run test

[whatSocks]

@fbiville the goal is to have an example of using tests using the semi-experimental https://github.com/neo4j-contrib/neo4j-temp-db - we can keep the "real" tests but have the other as an example for third parties to consider for their projects.