Update dependency release-it to v16 #452

Job	Run time
Tests	1m 3s
Floating Dependencies	1m 25s
ember-lts-4.12	2m 10s
ember-release	1m 42s
ember-beta	1m 47s
ember-canary	1m 48s
no-deprecations	1m 53s
ember-release-no-deprecations	1m 44s
embroider-safe	2m 22s
embroider-optimized	1m 43s
ember-modifier-3.2.7	1m 35s
	19m 12s

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