Tests

[DPE-2290] [DPE-2681] Upgrade from 14/stable and add integration tests #1436

Job	Run time
Unit tests	43s
Check libraries	29s
Lint	23s
Build charms / Get workflow version / Get workflow version	6s
Build charms / Collect charms	11s
Build charms / Build postgresql charm \| 22.04	3m 16s
backup-integration \| 2.9.44	53m 25s
backup-integration \| 3.1.5	1h 24m 59s
charm-integration \| 2.9.44	54m 3s
charm-integration \| 3.1.5	58m 3s
db-relation-integration \| 2.9.44	45m 53s
db-relation-integration \| 3.1.5	52m 32s
ha-replication-integration \| 2.9.44	27m 14s
ha-replication-integration \| 3.1.5	25m 47s
ha-self-healing-integration \| 2.9.44	29m 23s
ha-self-healing-integration \| 3.1.5	28m 58s
ha-restore-cluster-integration \| 2.9.44	20m 58s
ha-restore-cluster-integration \| 3.1.5	1s
password-rotation-integration \| 2.9.44	1s
password-rotation-integration \| 3.1.5	1s
plugins-integration \| 2.9.44	1s
plugins-integration \| 3.1.5	1s
tls-integration \| 2.9.44	1s
tls-integration \| 3.1.5	1s
upgrade-from-stable-integration \| 2.9.44	1s
upgrade-from-stable-integration \| 3.1.5	1s
database-relation-integration \| 2.9.44	1s
database-relation-integration \| 3.1.5	1s
db-admin-relation-integration \| 2.9.44	1s
	8h 6m 35s

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