chore(deps-dev): bump flatted from 3.3.3 to 3.4.2 in /package (#790) #751

Job	Run time
Verify example app sources	49s
Install dependencies	11s
Lint the sources	14s
Run the unit tests	15s
Build example app Android (Fabric)	5m 21s
Build example app iOS (Fabric)	1m 58s
	8m 48s

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