3.0.0

Change

• 9a3fff8 Update @types/hast, @types/xast, utilities
  migrate: update too
• 2fe524c Change to require Node.js 16
  migrate: update too
• 9c7c2ca Change to use exports
  migrate: don’t use private APIs
• f2ba32d Remove support for passing space directly
  migrate: x -> {space: x}

Full Changelog: 2.0.1...3.0.0