v0.3.0

This release introduces a few breaking changes:

• This package is now pure ESM. See Pure ESM package gist by Sindre Sorhus. d7d74d2
• Built-in AbortController is now used instead of node-abort-controller. AbortController is available in NodeJS since 14.17, and we drop support for older versions of NodeJS. That said, a polyfill is available for older versions that should work just fine. 9a065e1
• retry: default maxDelayMs is now 30 seconds. 7ffa0e2