typescript connection option timeout in place of queryTimeout

from https://github.com/mariadb-corporation/mariadb-connector-nodejs/issues/285
Command timeout can be set at connection option level with option queryTimeout for all commands while a query level, this is only named timeout. The connection option queryTimeout is not just named timeout to avoid confusion with other timeout options, like socketTimeout or connectTimeout

problem is that Typescript description only import query options, so list timeout in place of queryTimeout.
PR https://github.com/mariadb-corporation/mariadb-connector-nodejs/pull/286