Remove dependency on `Q` in favor of native Promises

[JamieMagee]

Environment

azure-pipelines-task-lib version: 3.4.0

Issue Description

azure-pipelines-task-lib currently has a hard dependency on q, a Promise library for JavaScript. This was necessary in the early days of JavaScript, but since ES6/ES2015 the JavaScript standard has had native support for Promises. q hasn't published a new release in over 5 years, and has a note on the GitHub repo

Please consider using JavaScript promises instead of Q. Native promises are faster, have better tooling support and are the future.

Support for native Promises in Node has been available since Node v4.

Expected behaviour

No dependency on q

Actual behaviour

A dependency on q

[max-zaytsev]

Hi @JamieMagee, thanks for reporting this.
We are currently working on higher priority issues. But we'll get back to that soon.

[github-actions]

This issue has had no activity in 90 days. Please comment if it is not actually stale

[JamieMagee]

This issue isn't stale

[Everspace]

This would be great, Jamie has also kindly opened a pull request for this too! #905

[jessehouwing]

• refactor: replace Q with native promises #905

[github-actions]

This issue has had no activity in 90 days. Please comment if it is not actually stale