Updated format validator for GitHub workflows #578

Job	Run time
android (samples/admob/app_open_example)	4m 28s
Build Flutter (samples/admob/app_open_example)	57s
iOS (samples/admob/app_open_example)	2m 15s
iOS (samples/admob/banner_example)	1m 54s
android (samples/admob/banner_example)	6m 31s
iOS (samples/admob/interstitial_example)	2m 12s
Build Flutter (samples/admob/banner_example)	56s
android (samples/admob/interstitial_example)	7m 24s
iOS (samples/admob/mediation_example)	2m 11s
android (samples/admob/mediation_example)	4m 57s
iOS (samples/admob/native_platform_example)	2m 2s
Build Flutter (samples/admob/interstitial_example)	57s
iOS (samples/admob/native_template_example)	2m 10s
Build Flutter (samples/admob/mediation_example)	53s
iOS (samples/admob/rewarded_example)	1m 56s
Build Flutter (samples/admob/native_platform_example)	57s
android (samples/admob/native_platform_example)	7m 0s
iOS (samples/admob/rewarded_interstitial_example)	2m 21s
Build Flutter (samples/admob/native_template_example)	55s
android (samples/admob/native_template_example)	4m 14s
Build Flutter (samples/admob/rewarded_example)	54s
android (samples/admob/rewarded_example)	6m 51s
Build Flutter (samples/admob/rewarded_interstitial_example)	57s
android (samples/admob/rewarded_interstitial_example)	4m 7s
	1h 9m 59s

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