feat(github-bot): support review team flows

[thehowl]

Fixes #3072, Fixes #3093.

Should add support for the required workflows on the GitHub bot, for the review team.

cc @Kouteki @jefft0

[Gno2D2]

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[codecov]

Codecov Report

Attention: Patch coverage is 74.45255% with 35 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
contribs/github-bot/internal/config/config.go	0.00%	13 Missing ⚠️
contribs/github-bot/internal/requirements/label.go	73.68%	8 Missing and 2 partials ⚠️
...tribs/github-bot/internal/requirements/reviewer.go	74.19%	6 Missing and 2 partials ⚠️
contribs/github-bot/internal/utils/testing.go	0.00%	4 Missing ⚠️

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