Implement request for database reset

[R055A]

Description

The changes in this pull request allow for the removing of all document data from the database collections on API request.

This pull request is dependent on PR #47 being merged.

This pull request also fixes a conflict in testing between parallel CI worjflow jobs by not allowing more than one job to run at a time.

Related Issue

Solves #29

Type of change

• [x] New feature (enhancement)

How Has This Been Tested?

An automated test has been added specifically for removing all document data from database collections. Additionally, a database reset has been included in the beforeEach() and after() functions for existing tests that interact with the database.

• [x] Automated testing

Checklist:

• [x] Does a similar (open or closed) pull request not already exist?
• [x] Is the pull request head repository a fork repository?
• [x] Is the pull request compare branch a development branch?
• [x] Is the code documented, particularly in hard-to-understand areas?
• [x] Does the code build without new warnings?
• [x] Has testing been performed that proves changes are effective and work?
• [x] Has a self- and/or peer-review of the code been performed?
• [x] Does all new and existing automated testing pass?
• [x] Is the person responsible for the repository assigned to the pull request?
• [x] Is the pull request linked to a project?
• [x] Is the pull request linked to a milestone?

[R055A]

Would we need unit tests for when forum.deleteMany and user.deleteMany throws an error?

All done, thanks.