[Backport v6.x] chore(H2): onboard H2 into Undici queueing system (#3707) #14949

Job	Run time
dependency-review	10s
Lint	29s
Fuzzing	3m 28s
Test TypeScript types	33s
Test with Node.js 20 compiled --without-intl	3m 26s
Test with Node.js 21 compiled --without-intl	3m 18s
Test with Node.js 22 compiled --without-intl	3m 28s
test (18, macos-latest) / Test with Node.js 18 on macos-latest	3m 51s
test (18, ubuntu-latest) / Test with Node.js 18 on ubuntu-latest	3m 55s
test (18, windows-latest) / Test with Node.js 18 on windows-latest	5m 16s
test (20, macos-latest) / Test with Node.js 20 on macos-latest	5m 21s
test (20, ubuntu-latest) / Test with Node.js 20 on ubuntu-latest	3m 13s
test (20, windows-latest) / Test with Node.js 20 on windows-latest	5m 33s
test (21, macos-latest) / Test with Node.js 21 on macos-latest	3m 28s
test (21, ubuntu-latest) / Test with Node.js 21 on ubuntu-latest	3m 1s
test (21, windows-latest) / Test with Node.js 21 on windows-latest	4m 47s
test (22, ubuntu-latest) / Test with Node.js 22 on ubuntu-latest	3m 37s
test (22, macos-latest) / Test with Node.js 22 on macos-latest	2m 47s
test (22, windows-latest) / Test with Node.js 22 on windows-latest	5m 0s
automerge	0s
	1h 4m 41s

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