nixos/tests/vaultwarden: fix database creation

            services.postgresql = {

              enable = true;

              initialScript = pkgs.writeText "postgresql-init.sql" ''

                CREATE DATABASE bitwarden;

                CREATE USER bitwardenuser WITH PASSWORD '${dbPassword}';

                GRANT ALL PRIVILEGES ON DATABASE bitwarden TO bitwardenuser;

                CREATE DATABASE bitwarden WITH OWNER bitwardenuser;

              '';

            };