Remove remaining @sync_compatible uses from prefect.flows

[desertaxle]

Checklist

• This pull request references any related issue by including "closes <link to issue>"
  • If no issue exists and your change is not a small fix, please create an issue first.
• If this pull request adds new functionality, it includes unit tests that cover the changes
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[codspeed-hq]

CodSpeed Performance Report

Merging #16942 will not alter performance

_{Comparing remove-sync-compat-from-flows (5c8fc4f) with main (eb67d28)}

Summary

✅ 2 untouched benchmarks