Bump y18n from 3.2.1 to 3.2.2 in /packages/backend

Bumps [y18n](https://github.com/yargs/y18n) from 3.2.1 to 3.2.2.
- [Release notes](https://github.com/yargs/y18n/releases)
- [Changelog](https://github.com/yargs/y18n/blob/master/CHANGELOG.md)
- [Commits](https://github.com/yargs/y18n/commits)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]