fix: exclude COMMENTED PRs from affecting label status

There's a flaw in this GitHub action where it removes the +2 or
+1 labels from pull requests that have an APPROVED status. This happens
because comments are counted as PR reviews, and the action only
considers the most recent review by each reviewer. This means if a
reviewer approves a pull request but later comments on it, their latest
"review" is now just a comment, and the approval is ignored.

Review states for pull requests include:

• APPROVED: The pull request can merge.
• CHANGES_REQUESTED: Prevents merging.
• COMMENTED: Just informational.
• DISMISSED: Negates an earlier review.
• PENDING: Review is incomplete.

To address this, we should ignore reviews that are solely comments. Our
focus is on the most recent review. A pull request should only lose its
+1 or +2 status if a subsequent review either requests changes,
dismisses the earlier approval, or is still pending. Comments alone
should not strip away an APPROVED status.

src/main.js

@@ -2,25 +2,25 @@ const core = require('@actions/core');
 const github = require('@actions/github');
 const { Octokit } = require("@octokit/action");
 
-async function run () {
+async function run() {
   const octokit = new Octokit;
   const pull_number = github.context.payload.pull_request.number
   const owner = github.context.payload.repository.owner.login
   const repo = github.context.payload.repository.name
 
-
   const prReviews = await octokit.request('GET /repos/{owner}/{repo}/pulls/{pull_number}/reviews', {
     owner,
     repo,
     pull_number
   })
-
   console.log(`prReviews: ${JSON.stringify(prReviews, undefined, 2)}`)
+
   let reviews = []
-  prReviews.data.reverse().forEach(review => {
+  let filteredPrReviews = prReviews.data.reverse().filter(review => review.state !== "COMMENTED");
+  filteredPrReviews.forEach(review => {
     const reviewer = review.user.login
     if (!reviews.find(r => r.reviewer === reviewer)) {
-      reviews.push({reviewer: reviewer, state: review.state})
+      reviews.push({ reviewer: reviewer, state: review.state })
     }
   });
   console.log(`reviews: ${JSON.stringify(reviews, undefined, 2)}`)
@@ -32,7 +32,7 @@ async function run () {
     owner,
     repo,
     pull_number,
-  }) 
+  })
 
   const labels = issue["labels"].map(l => l["name"])
   let filteredLabels = labels.filter((l) => !["+1", "+2"].includes(l))
@@ -56,4 +56,4 @@ try {
   run()
 } catch (error) {
   core.setFailed(error.message);
-}
+}