refactor: roll out stream helpers to requesty spec (#1089) #3686

Job	Run time
check-translations	31s
compile	1m 54s
platform-unit-test (ubuntu-latest)	3m 49s
platform-unit-test (windows-latest)	9m 25s
invisible-chars	8s
knip	40s
dependency-review	0s
	16m 27s

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