Tests

Fix backup logging 6 edge #1051

Job	Run time
Lint	14s
Unit tests	2m 27s
Check libraries	25s
Build charms / Get workflow version / Get workflow version	5s
Build charms / Collect charms	9s
Build charms / Build mongodb charm \| base #0	1m 49s
Build charms / Build legacy-application charm \| base #0	1m 38s
Build charms / Build application charm \| base #0	1m 29s
charm-integration	11m 13s
ha-integration	52m 27s
relation-integration	17m 43s
legacy-integration	2m 59s
tls-integration	20m 15s
backup-integration	1h 5m 46s
metric-integration	19m 29s
sharding-integration	1h 13m 42s
sharding-relation-integration	11m 58s
	4h 43m 48s

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