Fix integration tests sending events

[jpwilliams]

Summary

Fixes integration tests returning an incorrect ID when sending events.

Checklist

• [ ] ~Added a docs PR that references this PR~ N/A
• [x] Added unit/integration tests
• [x] Added changesets if applicable

Related

• INN-2879
• inngest/inngest#1238
• Unblocks:

  • 518

  • 519

  • 520

  • 521

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 20bc8bf177be59c0c5be6b73f55ea63d31074351

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