[DPE-2314] Add upgrade integration test #702

Job	Run time
Unit tests	1m 22s
Lint	39s
Build charms / Get workflow version / Get workflow version	4s
Build charms / Collect charms	14s
Build charms / Build kafka charm \| 22.04	2m 31s
Build charms / Build application charm \| 22.04	1m 49s
integration-charm	18m 38s
integration-provider	31m 5s
integration-scaling	15m 25s
integration-password-rotation	15m 44s
integration-tls	27m 4s
integration-upgrade	24m 10s
	2h 18m 45s

Provide feedback