Tests

[DPE-2687] Update to use Juju 3 #845

Job	Run time
Unit tests	1m 24s
Lint	45s
sync-docs / Open PR with docs changes	3m 4s
Build charms / Get workflow version / Get workflow version	9s
Build charms / Collect charms	14s
Build charms / Build kafka charm \| 22.04	18m 57s
Build charms / Build application charm \| 22.04	2m 12s
integration-charm	16m 40s
integration-provider	34m 18s
integration-scaling	15m 27s
integration-password-rotation	15m 5s
integration-tls	30m 21s
integration-upgrade	21m 26s
integration-ha	43m 31s
	3h 23m 33s

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