feat: gh action to apply PR review labels

[matthewgallo]

Closes #5535

This action adds review labels to PRs (specifically the status: one more review label) to help us streamline our review process a bit.

Here is a rough summary of the steps taken:

1. The received-pr-review.yml workflow is triggered when a review is submitted, either an approval or requested changes.
2. This workflow saves the github.event data as a workflow artifact that is later used from process-pr-review-data.yml.
3. When received-pr-review.yml completes, the process-pr-review-data.yml workflow will be dispatched and will make a request for the previously created workflow artifact.
4. After unzipping the workflow artifact, we're now able to check if the reviewer is part of the reviewing team and count their review if it is an approval or skip it if it's not an approval.
5. If the submitted review is from an account not part of the reviewing team then the review won't count at all.

What did you change?

.github/workflows/process-pr-review-data.yml
.github/workflows/received-pr-review.yml
.gitignore
actions/add-review-labels/.npmignore
actions/add-review-labels/Dockerfile
actions/add-review-labels/action.yml
actions/add-review-labels/index.js
actions/add-review-labels/package.json

How did you test and verify your work?

In test repo:
Successful process-pr-review-data workflow
Example PR with label applied

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[elycheea]

I don’t think we really need this step, unless there’s an operational reason we want to pull the label back off. But doesn’t really hurt either.

[davidmenendez]

wow this is terrific!