Released reactphp/stream v1.4.0

[SimonFrings]

Released reactphp/stream v1.4.0 today 🎉

• Feature: Improve PHP 8.4+ support by avoiding implicitly nullable type declarations.
  (#179 by @clue)

• Feature: Full PHP 8.3 compatibility.
  (#172 by @clue)

• Fix: Fix drain event of ThroughStream to handle potential race condition.
  (#171 by @clue)

– See https://github.com/reactphp/stream/releases/tag/v1.4.0