Add Flutter runtime information #1885

# to view logs

Job	Run time
cancel-previous-workflow	4s
macos \| stable	1m 28s
macos \| beta	2m 14s
linux \| stable	1m 41s
linux \| beta	2m 2s
windows \| stable	4m 1s
windows \| beta	4m 24s
analyze / analyze	1m 34s
analyze / cancel-previous-workflow	2s
analyze / package-analysis	1m 24s
	18m 54s

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