chore(master): release 2.2.1

[github-actions[bot]]

:robot: I have created a release beep boop

2.2.1 (2022-06-09)

Bug Fixes

• add fastify@v4 support (#47) (c9cf800)

---

This PR was generated with Release Please. See documentation.

[github-actions[bot]]

:robot: Release is at https://github.com/NodeFactoryIo/fastify-sse-v2/releases/tag/v2.2.1 :sunflower: