Fix bugs in several calendars with new continuity test (#4904) #1828

Job	Run time
Check Credentials for jobs that need JSON credentials	3s
WASM Demo	3m 46s
bench-binsize	4m 45s
bench-datasize	1h 7m 23s
bench-memory (ubuntu-latest)	3m 42s
bench-memory (windows-latest)	9m 39s
bench-perf (components/collections)	4m 39s
bench-perf (components/datetime)	4m 17s
bench-memory (macos-latest)	3m 28s
bench-perf (components/locid)	5m 25s
bench-perf (components/locid_transform)	2m 39s
bench-perf (components/plurals)	6m 7s
bench-perf (components/segmenter)	3m 45s
bench-perf (provider/blob)	2m 19s
bench-perf (utils/fixed_decimal)	6m 9s
bench-perf (utils/litemap)	2m 9s
bench-perf (utils/tinystr)	6m 18s
bench-perf (utils/writeable)	3m 35s
bench-perf (utils/zerotrie)	5m 45s
bench-perf (utils/zerovec)	8m 41s
Dart docs	1m 20s
C++ docs	1m 0s
Rust docs	5m 1s
TypeScript docs	48s
Deploy to GitHub Pages	17m 22s
	3h 0m 5s

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