Release 3.0.0

What's Changed

• Feature: add pydantic v2 compat by @StarHeartHunt in #73
• Feature: 升级到 Pydantic v2 by @yanyongyu in #74
• Feature: refactor github image renderer by @yanyongyu in #78
• Fix: issue closed webhook render actor error by @yanyongyu in #80

Full Changelog: v2.1.3...v3.0.0