private void configureAuth() {
        String neo4jAuthEnvKey = "NEO4J_AUTH";
        if (!getEnvMap().containsKey(neo4jAuthEnvKey) || !DEFAULT_ADMIN_PASSWORD.equals(this.adminPassword)) {
            boolean emptyAdminPassword = this.adminPassword == null || this.adminPassword.isEmpty();
            String neo4jAuth = emptyAdminPassword ? "none" : String.format(AUTH_FORMAT, this.adminPassword);
            addEnv(neo4jAuthEnvKey, neo4jAuth);
        }
    }
Configured via {@link Neo4jContainer#withAdminPassword(String)} or {@link Neo4jContainer#withoutAuthentication()}
It is only possible to set the correct auth in the configuration call.
Also, the custom methods overrule the set env parameter.
modules/neo4j/src/main/java/org/testcontainers/containers/Neo4jContainer.java