Update previous comment instead of posting a new one

Author: j-f1

perf-tester/index.js

@@ -109,7 +109,7 @@ async function run(octokit, context, token) {
 			const comments = (await octokit.issues.listComments(commentInfo)).data;
 			for (let i = comments.length; i--;) {
 				const c = comments[i];
-				if (c.user.type === 'Bot' && /<sub>[\s\n]*(compressed|gzip)-size-action/.test(c.body)) {
+				if (c.user.type === 'Bot' && /<sub>[\s\n]*performance-action/.test(c.body)) {
 					commentId = c.id;
 					break;
 				}