Tests

Update doc link for 6/edge #1038

Job	Run time
Lint	16s
Unit tests	2m 25s
Check libraries	30s
Build charms / Get workflow version / Get workflow version	6s
Build charms / Collect charms	10s
Build charms / Build mongodb charm \| base #0	2m 34s
Build charms / Build legacy-application charm \| base #0	2m 3s
Build charms / Build application charm \| base #0	1m 29s
charm-integration	13m 11s
ha-integration	50m 4s
relation-integration	22m 31s
legacy-integration	4m 10s
tls-integration	21m 32s
backup-integration	1h 15m 32s
metric-integration	19m 16s
sharding-integration	57m 51s
sharding-relation-integration	11m 6s
	4h 44m 46s

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