Bump moment-timezone from 0.5.25 to 0.5.37 in /backend

Bumps [moment-timezone](https://github.com/moment/moment-timezone) from 0.5.25 to 0.5.37.
- [Release notes](https://github.com/moment/moment-timezone/releases)
- [Changelog](https://github.com/moment/moment-timezone/blob/develop/changelog.md)
- [Commits](moment/moment-timezone@0.5.25...0.5.37)

---
updated-dependencies:
- dependency-name: moment-timezone
  dependency-type: indirect
...

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Author: dependabot[bot]