chore(deps): update Flutter SDK (metrics) to v3.16.2 #5949

Job	Run time
android \| ubuntu-latest \| stable	8m 6s
android \| ubuntu-latest \| beta	7m 23s
cancel-previous-workflow	2s
web \| ubuntu-latest \| stable	6m 26s
web \| ubuntu-latest \| beta	4m 55s
ktlint	13s
linux \| ubuntu-latest \| stable	6m 29s
linux \| ubuntu-latest \| beta	6m 3s
pod-lint	3m 4s
windows \| windows-latest \| stable	5m 36s
windows \| windows-latest \| beta	5m 30s
swift-lint	29s
ios \| macos-latest \| stable	12m 39s
macos \| macos-latest \| stable	8m 20s
detekt	11s
analyze / analyze	5m 0s
analyze / cancel-previous-workflow	2s
analyze / package-analysis	1m 14s
	1h 21m 42s

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