feat: fetch data for prs that need retest

src/index.mjs

@@ -6,6 +6,7 @@ import getCommits from './lib/get_commits.mjs';
 import getCommitStatus from './lib/get_commit_status.mjs';
 import History from './lib/history.mjs';
 
+// load env vars from .env file
 dotenv.config();
 
 export default async function() {