chore: Convert PR title action to module (#9152)

Author: mister-ben

.github/actions/pr-titles.js .github/actions/pr-titles.mjs.github/actions/pr-titles.js renamed to .github/actions/pr-titles.mjs

@@ -1,5 +1,5 @@
-const core = require('@actions/core');
-const github = require('@actions/github');
+import * as core from '@actions/core';
+import * as github from '@actions/github';
 
 (async function run() {
   const title = github.context.payload.pull_request?.title;

.github/workflows/pr-titles.yml

@@ -19,4 +19,4 @@ jobs:
         with:
           node-version: '20'
       - run: npm i @actions/core @actions/github
-      - run: node .github/actions/pr-titles.js
+      - run: node .github/actions/pr-titles.mjs