Bump bcrypt from 0.8.7 to 5.0.0 in /src/backend
Bump bcrypt from 0.8.7 to 5.0.0 in /src/backend

Bumps [bcrypt](https://github.com/kelektiv/node.bcrypt.js) from 0.8.7 to 5.0.0.
- [Release notes](https://github.com/kelektiv/node.bcrypt.js/releases)
- [Changelog](https://github.com/kelektiv/node.bcrypt.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kelektiv/node.bcrypt.js/compare/v0.8.7...v5.0.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
nightpaws/ADVE-RTISE,nightpaws/ADVE-RTISE,nightpaws/ADVE-RTISE