feat: switch from node 14 to 16 (#1118) #9

Job	Run time
build-layer	34s
publish-layer (ap-northeast-1) / publish_layer	17s
publish-layer (ap-northeast-2) / publish_layer	20s
publish-layer (ap-south-1) / publish_layer	23s
publish-layer (ap-southeast-1) / publish_layer	24s
publish-layer (ap-southeast-2) / publish_layer	22s
publish-layer (ca-central-1) / publish_layer	19s
publish-layer (eu-north-1) / publish_layer	18s
publish-layer (eu-central-1) / publish_layer	21s
publish-layer (eu-west-1) / publish_layer	17s
publish-layer (eu-west-3) / publish_layer	22s
publish-layer (sa-east-1) / publish_layer	29s
publish-layer (eu-west-2) / publish_layer	21s
publish-layer (us-east-1) / publish_layer	13s
publish-layer (us-east-2) / publish_layer	12s
publish-layer (us-west-2) / publish_layer	18s
publish-layer (us-west-1) / publish_layer	19s
	5m 49s

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