Set tracing event info before marking request as delivered.

[mar-cf]

Set tracing event info before marking request as delivered, removing some duplicated code and requiring custom events to implement get event info (duplicate of #5798, so this will likely be removed).

[github-actions]

The generated output of @cloudflare/workers-types matches the snapshot in types/generated-snapshot 🎉

[fhanau]

Changes LGTM. I'm still convinced that moving the delivered() calls backwards is unlikely to do anything since we covered the case of JsRpc but it won't be harmful either and conceivably reduces the risk of breakage if that changes in the future.

[codspeed-hq]

CodSpeed Performance Report

Merging #5800 will improve performance by 12.6%

_{Comparing mar/alarm-event-order (7d269c2) with main (e46f4d8)}

Summary

⚡ 1 improvement
✅ 139 untouched
⏩ 38 skipped¹

Benchmarks breakdown

	Benchmark	BASE	HEAD	Efficiency
⚡	Encode_ASCII_256[TextEncoder][0/0/256]	3.5 ms	3.1 ms	+12.6%

Footnotes

1. 38 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩