fix(jobs): [nan-1010] use void

[khaliqgant]

Describe your changes

As explained by Thomas:

Use void since we're not explicitly handling the promise resolution of the webhook sending

Tested this against returning a 504 (what the customer is returning from their webhook) from a webhook with Temporal and the task execution completes even as the webhook continues to retry. With async usage, the temporal activity is still in running state while the webhook retries.

Issue ticket number and link

Checklist before requesting a review (skip if just adding/editing APIs & templates)

• I added tests, otherwise the reason is:
• I added observability, otherwise the reason is:
• I added analytics, otherwise the reason is:

[linear]

NAN-1010 Descrepency between sync status in Connections vs. Activity tabs

[TBonnin]

I would also maybe lower the retry attempts to 7 or 8 instead of 10. The 10th retry almost wait for a minute

[khaliqgant]

I would also maybe lower the retry attempts to 7 or 8 instead of 10. The 10th retry almost wait for a minute

Dropped to 7