[various] updated GitHub workflow to check for Dart formatting issues… #208

Job	Run time
Build Android example app (3.13)	3m 57s
Build iOS example app (3.13)	3m 17s
Run Dart Analyzer	1m 17s
Build Android example app (stable channel)	4m 26s
Build iOS example app (stable channel)	3m 37s
Build Linux example app (3.13)	2m 1s
Build Linux example app (stable channel)	1m 48s
Build macOS example app (3.13)	3m 39s
Build macOS example app (stable channel)	3m 12s
Dart formatting checks	1m 16s
Run integration tests (Android)	5m 20s
Run integration tests (iOS)	7m 31s
java_format	6s
objc_format	9s
swift_format	12s
Run all unit tests (Android)	4m 28s
Run all unit tests (Dart)	1m 25s
	47m 41s

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