Direct teams and stable counterparts are based on roles

Why is this change being made?

These are based on manager roles, and need to be updated when your role is changed to include / exclude the right team members from the lists:

• https://about.gitlab.com/handbook/engineering/development/growth/#people-leaders-in-development
• https://about.gitlab.com/handbook/engineering/development/growth/product-intelligence/#team-members
• https://about.gitlab.com/handbook/engineering/development/growth/#stable-counterparts

cc @whaber, @nicolasdular

Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the "Maintained by" section in on the page being edited.
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies.