[fix] Missing await on 'start' function.

[jmtt89]

Describe the bug

Node.js version: 18.16

OS version: Win11 (WSL)

Description:

The bug is on the start function, when calling start on already started project, the app will fail and the error can't be cached by try /catch statement, that is because the this.start(job.name) no are waiting...

a good enough solution maybe as call await Promise.all([...]) or just add a await inside the for

 async start(name) {
    ...
    for (const job of this.config.jobs) {
      this.start(job.name);
    }
  }

Code to reproduce

(async () => {
  ....
  await bree.add('boop');
  await bree.start()
  ....
  await bree.add('foo');
  try {
    await bree.start()
  catch (err) {
     // Never call this catch but 
   }
})();

Checklist

• I have searched through GitHub issues for similar issues.
• I have completely read through the README and documentation.
• I have tested my code with the latest version of Node.js and this package and confirmed it is still not working.