Reduce approvers to pacospace and xtuchyna, add reviewers

[xtuchyna]

Description

So far, @pacospace and myself are most familiar with project mi, therefore it makes sense to leave us as approvers, and make others reviewers for increasing code quality.

This introduces a breaking change

• No

This should yield a new module release

• No

[sesheta]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: pacospace

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/thoth-station/mi/blob/master/OWNERS)~~ [pacospace] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[pacospace]

@xtuchyna please take care of pre-commit

[xtuchyna]

/retest