Fix beta CI detection (#5063) #1953

Job	Run time
Check Credentials for jobs that need JSON credentials	3s
WASM Demo	2m 4s
bench-binsize	2m 50s
bench-memory (macos-latest)	3m 32s
bench-memory (ubuntu-latest)	3m 43s
bench-memory (windows-latest)	10m 24s
bench-perf (components/collections)	4m 38s
bench-perf (components/locale)	2m 37s
bench-perf (components/locale_core)	5m 20s
bench-perf (components/datetime)	1m 35s
bench-perf (components/plurals)	6m 13s
bench-perf (components/segmenter)	3m 42s
bench-perf (provider/blob)	4m 17s
bench-perf (utils/fixed_decimal)	6m 17s
bench-perf (utils/litemap)	2m 6s
bench-perf (utils/tinystr)	6m 32s
bench-perf (utils/writeable)	3m 36s
bench-perf (utils/zerotrie)	5m 46s
bench-perf (utils/zerovec)	8m 31s
Rust docs	4m 56s
Dart docs	1m 37s
C++ docs	1m 24s
TypeScript docs	42s
Deploy to GitHub Pages	11m 25s
	1h 43m 50s

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