docs: update actions trigger api and event documentation

[wtwerner]

Description

This PR updates the Actions Trigger documentation for the event and api objects for all trigger types. These documents are generated from our publicly available TypeScript types and use Mintlify components.

References

Testing

Checklist

• I've read and followed CONTRIBUTING.md.
• I've tested the site build for this change locally.
• I've made appropriate docs updates for any code or config changes.
• I've coordinated with the Product Docs and/or Docs Management team about non-trivial changes.

[github-actions]

Summary

Status	Count
🔍 Total	12
✅ Successful	9
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	3
❓ Unknown	0
🚫 Errors	0
⛔ Unsupported	0
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