ci: post PR artifact comments per build

.github/workflows/comment-pr-artifacts.yml

@@ -110,23 +110,6 @@ jobs:
               artifactsBlock,
             ].join('\n');
 
-            const comments = await github.paginate(
-              github.rest.issues.listComments,
-              { owner, repo, issue_number: prNumber, per_page: 100 }
-            );
-            const existing = comments.find((comment) => (comment.body || '').includes(marker));
-
-            if (existing) {
-              await github.rest.issues.updateComment({
-                owner,
-                repo,
-                comment_id: existing.id,
-                body,
-              });
-              core.info(`Updated existing artifacts comment: ${existing.html_url}`);
-              return;
-            }
-
             const created = await github.rest.issues.createComment({
               owner,
               repo,