Updated format validator for GitHub workflows #583

Job	Run time
android (samples/admob/app_open_example)	3m 16s
android (samples/admob/banner_example)	7m 18s
Build Flutter (samples/admob/app_open_example)	46s
android (samples/admob/interstitial_example)	5m 42s
iOS (samples/admob/app_open_example)	1m 50s
Build Flutter (samples/admob/banner_example)	45s
android (samples/admob/mediation_example)	7m 33s
iOS (samples/admob/banner_example)	2m 2s
Build Flutter (samples/admob/interstitial_example)	46s
android (samples/admob/native_platform_example)	5m 9s
iOS (samples/admob/interstitial_example)	2m 19s
android (samples/admob/native_template_example)	4m 5s
Build Flutter (samples/admob/mediation_example)	42s
iOS (samples/admob/mediation_example)	1m 53s
android (samples/admob/rewarded_example)	4m 25s
Build Flutter (samples/admob/native_platform_example)	44s
iOS (samples/admob/native_platform_example)	1m 38s
android (samples/admob/rewarded_interstitial_example)	4m 41s
Build Flutter (samples/admob/native_template_example)	42s
iOS (samples/admob/native_template_example)	2m 30s
Build Flutter (samples/admob/rewarded_example)	43s
iOS (samples/admob/rewarded_example)	2m 13s
Build Flutter (samples/admob/rewarded_interstitial_example)	41s
iOS (samples/admob/rewarded_interstitial_example)	2m 7s
	1h 4m 30s

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