Bump minimist and @adonisjs/lucid in /omnistack-saas/backend

Removes [minimist](https://github.com/minimistjs/minimist). It's no longer used after updating ancestor dependency [@adonisjs/lucid](https://github.com/adonisjs/lucid). These dependencies need to be updated together.


Removes `minimist`

Updates `@adonisjs/lucid` from 6.1.3 to 6.3.0
- [Release notes](https://github.com/adonisjs/lucid/releases)
- [Commits](https://github.com/adonisjs/lucid/commits)

---
updated-dependencies:
- dependency-name: minimist
  dependency-type: indirect
- dependency-name: "@adonisjs/lucid"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>