feat(hub-discussions): v2 breaking changes (#1770) #921

Job	Run time
Build and Test (ubuntu-latest, 16)	4m 39s
Build and Test (ubuntu-latest, 16)	7m 10s
Release	0s
Release	5m 22s
Deploy Documentation	0s
Deploy Documentation / build-and-deploy	3m 10s
	20m 21s

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