Tests

Update release.yaml to run on merge to branch (5/edge) #912

Job	Run time
Unit tests	2m 41s
Lint	15s
Check libraries	29s
Build charms / Get workflow version / Get workflow version	8s
Build charms / Collect charms	17s
Build charms / Build mongodb charm \| 22.04	2m 39s
Build charms / Build application charm \| 20.04	1m 48s
charm-integration	13m 43s
ha-integration	51m 1s
relation-integration	22m 15s
legacy-integration	4m 33s
tls-integration	31m 5s
backup-integration	1h 15m 43s
metric-integration	20m 9s
	3h 46m 46s

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