chore(deps): update codecov/codecov-action to v4.3.0 #59

Job	Run time
flutter-test-analyze / Test	1m 7s
flutter-test-analyze / Format	36s
flutter-test-analyze / Analyze	1m 4s
flutter-build / Android (apk)	8m 9s
flutter-build / WEB	4s
flutter-build / iOS	4s
	11m 4s

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