fix: do not introspect mongodb reserved system collections

[realSpok]

Definition of Done

86bybt7pr

General

• [ ] Write an explicit title for the Pull Request, following Conventional Commits specification
• [ ] Test manually the implemented changes
• [ ] Validate the code quality (indentation, syntax, style, simplicity, readability)

Security

• [ ] Consider the security impact of the changes made

[forest-bot]

Task linked: CU-86bybt7pr 🔥🔥🔥 P1 - Onboarding cloud - Projects are sometimes blocked in an "in between state", where they're not onboarding, but onboarding is not possible because it is considered as already done

[codeclimate[bot]]

Code Climate has analyzed commit ec1fcd1e and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (98% is the threshold).

This pull request will bring the total coverage in the repository to 97.5%.

View more on Code Climate.