Update to JS2 (#5251) #2097

Job	Run time
Check Credentials for jobs that need JSON credentials	2s
WASM Demo	2m 10s
bench-binsize	13m 14s
bench-memory (macos-latest)	4m 39s
bench-memory (ubuntu-latest)	3m 55s
bench-memory (windows-latest)	7m 47s
bench-perf (components/collections)	4m 32s
bench-perf (components/datetime)	4m 23s
bench-perf (components/locale)	2m 38s
bench-perf (components/locale_core)	5m 26s
bench-perf (components/plurals)	6m 10s
bench-perf (components/segmenter)	3m 48s
bench-perf (provider/blob)	3m 26s
bench-perf (utils/fixed_decimal)	6m 15s
bench-perf (utils/litemap)	2m 8s
bench-perf (utils/tinystr)	6m 49s
bench-perf (utils/writeable)	3m 39s
bench-perf (utils/zerotrie)	5m 45s
bench-perf (utils/zerovec)	8m 42s
C++ docs	1m 59s
Rust docs	4m 47s
Dart docs	1m 33s
TypeScript docs	38s
Deploy to GitHub Pages	20m 27s
	2h 4m 52s

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