Tests

[DPE-2777] Basic sharding int test #923

Job	Run time
Check libraries	27s
Lint	22s
Unit tests	2m 40s
Build charms / Get workflow version / Get workflow version	7s
Build charms / Collect charms	18s
Build charms / Build mongodb charm \| 22.04	2m 13s
Build charms / Build application charm \| 20.04	1m 48s
charm-integration	13m 15s
ha-integration	1h 6m 38s
relation-integration	22m 52s
legacy-integration	3m 35s
tls-integration	22m 40s
backup-integration	1h 15m 37s
metric-integration	20m 3s
sharding-integration	22m 58s
	4h 15m 33s

Provide feedback