Move PluralRules to use Preferences (#5798) #2525

Job	Run time
Check Credentials for jobs that need JSON credentials	3s
WASM Demo	1m 38s
bench-binsize	2m 29s
bench-memory (macos-latest)	3m 9s
bench-memory (ubuntu-latest)	3m 24s
bench-memory (windows-latest)	10m 28s
bench-perf (components/collections)	4m 42s
bench-perf (components/datetime)	2m 31s
bench-perf (components/locale)	2m 43s
bench-perf (components/locale_core)	5m 20s
bench-perf (components/plurals)	6m 5s
bench-perf (provider/blob)	2m 23s
bench-perf (components/segmenter)	3m 34s
bench-perf (utils/litemap)	2m 9s
bench-perf (utils/fixed_decimal)	6m 2s
bench-perf (utils/tinystr)	6m 36s
bench-perf (utils/writeable)	3m 55s
bench-perf (utils/zerotrie)	5m 20s
bench-perf (utils/zerovec)	8m 53s
C++ docs	42s
Dart docs	1m 22s
Rust docs	5m 36s
TypeScript docs	41s
Deploy to GitHub Pages	8m 5s
	1h 37m 50s

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