Bump moment-timezone from 0.5.13 to 0.5.21
Bump moment-timezone from 0.5.13 to 0.5.21

Bumps [moment-timezone](https://github.com/moment/moment-timezone) from 0.5.13 to 0.5.21.
- [Release notes](https://github.com/moment/moment-timezone/releases)
- [Changelog](https://github.com/moment/moment-timezone/blob/develop/changelog.md)
- [Commits](https://github.com/moment/moment-timezone/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
danielfsousa/express-rest-es2017-boilerplate,danielfsousa/express-rest-es2017-boilerplate,danielfsousa/express-rest-es2017-boilerplate