Release v1.0.0-RC.3

What's Changed

• Add GitHub Actions workflow for npm publishing by @eduwass in #3
• feat: flexible send return type by @raibis in #7
• feat: add close() method to ServerSentEventGenerator by @eduwass in #11

New Contributors

• @eduwass made their first contribution in #3
• @raibis made their first contribution in #7

Full Changelog: https://github.com/starfederation/datastar-typescript/commits/v1.0.0-RC.3