Tests

Tests #724

Job	Run time
Lint	17s
Unit tests	2m 24s
Check libraries	26s
Build charms / Get workflow version / Get workflow version	4s
Build charms / Collect charms	11s
Build charms / Build mongodb charm \| 22.04	4m 11s
Build charms / Build application charm \| 20.04	2m 59s
charm-integration	9m 57s
ha-integration	1h 0m 52s
relation-integration	19m 21s
legacy-integration	31m 28s
tls-integration	8m 21s
backup-integration	1h 11m 59s
metric-integration	19m 57s
	3h 52m 27s

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