chore: bump component-emitter dependency

Subscribing/unsubscribing for a lot of different event types could lead
to a memory leak.

See https://github.com/component/emitter/commit/aa2e57acc7a5e7c8642cb70c8862785ddfc220ca

Diff: https://github.com/component/emitter/compare/1.2.1...1.3.0