throw appropriate error for non-byob stream mode

[anonrig]

Fixes several tests. I'm not sure if we should put it behind a compat flag or not.

[jasnell]

LGTM but please don't land without coordinating around the landing of #5670

[codspeed-hq]

CodSpeed Performance Report

Merging #5748 will improve performance by 12.86%

_{Comparing yagiz/throw-appropriate-errors (5b09510) with main (78a4eec)}

Summary

⚡ 1 improvement
✅ 56 untouched
⏩ 34 skipped¹

Benchmarks breakdown

	Benchmark	BASE	HEAD	Efficiency
⚡	simpleStringBody[Response]	22.4 µs	19.8 µs	+12.86%

Footnotes

1. 34 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. ↩