build(deps): bump @nestjs/mapped-types

Bumps the nestjs group in /nestjs-demo with 1 update: [@nestjs/mapped-types](https://github.com/nestjs/mapped-types).


Updates `@nestjs/mapped-types` from 2.0.5 to 2.0.6
- [Release notes](https://github.com/nestjs/mapped-types/releases)
- [Changelog](https://github.com/nestjs/mapped-types/blob/master/.release-it.json)
- [Commits](nestjs/mapped-types@2.0.5...2.0.6)

---
updated-dependencies:
- dependency-name: "@nestjs/mapped-types"
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nestjs
...

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