Use `BytesStream` inside `Transport` trait #3825

Job	Run time
Additional Builds and Concurrency Tests	15s
Additional Builds and Concurrency Tests	7m 1s
Release builds and tests	4m 35s
Release builds and tests	4m 35s
sanitize (address)	4m 6s
sanitize (address)	4m 6s
Basic Checks	7m 17s
Basic Checks	7m 17s
sanitize (address, multi-threading)	4m 18s
sanitize (address, multi-threading)	4m 18s
miri	2m 40s
miri	2m 40s
sanitize (leak)	3m 56s
sanitize (leak)	3m 56s
Measure coverage	8m 54s
Measure coverage	8m 54s
sanitize (leak, multi-threading)	3m 17s
sanitize (leak, multi-threading)	3m 17s
	1h 25m 22s

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