public S withNeo4jConfig(String key, String value) {
        addEnv(formatConfigurationKey(key), value);
        return self();
    }
Adds Neo4j configuration properties to the container. The properties can be added as in the official Neo4j
configuration, the method automatically translate them into the format required by the Neo4j container.

@param key   The key to configure, i.e. {@code dbms.security.procedures.unrestricted}
@param value The value to set
@return This container.
modules/neo4j/src/main/java/org/testcontainers/containers/Neo4jContainer.java