[DPE-6248] Prepare charm for charmcraft 3 (#176) #127

Job	Run time
Check libraries	36s
Build charm / Collect bases for charm \| .	17s
Build charm / Build charm \| base #0	10m 56s
ci-tests / Lint	36s
ci-tests / Unit tests	1m 16s
ci-tests / Build charms (.) / Collect bases for charm \| .	19s
ci-tests / Build charms (tests/integration/app-charm) / Collect bases for charm \| tests/integration/app-charm	14s
ci-tests / Build charms (tests/integration/app-charm) / Build charm \| base #0	2m 52s
ci-tests / Build charms (.) / Build charm \| base #0	5m 23s
ci-tests / integration-charm	27m 51s
ci-tests / integration-password-rotation	16m 56s
ci-tests / integration-provider	26m 25s
ci-tests / integration-tls	34m 29s
ci-tests / integration-upgrade	3m 9s
ci-tests / integration-backup	27m 33s
ci-tests / integration-replication	28m 56s
ci-tests / integration-scaling	46m 23s
ci-tests / integration-ha	25m 7s
Release to Charmhub / Release charm	1m 20s
	4h 20m 38s

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