docs: fix unhandledRejection statement

[Eomm]

The statement seems not correct (node v20.x):

This promise could be ignored as it will not lead to a 'unhandledRejection'.

const queue = require('fastq').promise(worker, 1);

async function worker (arg) {
  throw new Error('app error');
}

process.on('unhandledRejection', (err) => {
  console.error({ unhandledRejection: err });
});

async function run () {
  const result = await queue.push(42);
  console.log('the result is', result);
}

run();

Output:

{
  unhandledRejection: Error: app error....
}

[mcollina]

Have you tried not awaiting it at all?

[Eomm]

Ok, it was my run that triggers the unhandled exception 👍🏼