feat: support async `io.runTask` error callback

[minyoung]

Closes #909

✅ Checklist

• [x] I have followed every step in the contributing guide
• [x] The PR title follows the convention.
• [x] I ran and tested the code works

---

Testing

Ran with a patched @trigger.dev/sdk (using pnpm.patchedDependencies), verified that there were no type errors and that returning { skipRetrying: true } worked correctly with and without an async error callback (at different task.attempt values)

---

Changelog

Support async io.runTask error callback

💯

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: b03871900bdc9aa4c65c1bbde61c989cf835be98

The changes in this PR will be included in the next version bump.

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[matt-aitken]

Sorry this PR coincided with major platform so didn't get the attention it deserved at the time. Version 2 is deprecated and with be end-of-life on Jan 31.