add cancellation support to async iterable iteration #2513

Job	Run time
Security check of added dependencies	7s
Diff content of NPM package	1m 13s
ci / Build 'npmDist' artifact	34s
ci / Check for commonly ignored files	5s
ci / Check health of package-lock.json file	19s
ci / Run CodeQL security scan	1m 53s
ci / Run fuzzing tests	47s
ci / Run integration tests	1m 34s
ci / Lint source files	1m 0s
ci / Run tests on Node v16	32s
ci / Build 'denoDist' artifact	22s
ci / Run tests on Node v18	30s
ci / Run tests on Node v19	30s
ci / Build website	1m 3s
	10m 29s

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