ci: Add admin team to all Pull Requests.

[nfelt14]

Proposed changes

Updated the add reviewer workflow to add the admin team to all Pull Requests.

Types of changes

What types of changes does your code introduce?
Put an x in the boxes that apply

• CI/CD update (an update to the CI/CD workflows, scripts, and/or configurations)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have followed the guidelines in the CONTRIBUTING document
• I have signed the CLA
• I have checked to ensure there aren't other open Pull Requests for the same update/change
• I have performed a self-review of my code
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• Basic linting passes locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have added necessary documentation (if appropriate)
• I have updated the Changelog with a brief description of my changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9deab77) 100.00% compared to head (04d3893) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #113   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          168       168           
  Lines         3776      3776           
  Branches       649       649           
=========================================
  Hits          3776      3776           

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