update lagoon appVersion to v2.17.0 #1428

Job	Run time
test-suite (active-standby-kubernetes)	19m 50s
test-suite (active-standby-kubernetes)	19m 50s
test-suite (api)	25m 19s
test-suite (api)	25m 19s
test-suite (deploytarget)	24m 13s
test-suite (deploytarget)	24m 13s
test-suite (features-kubernetes)	28m 18s
test-suite (features-kubernetes)	28m 18s
test-suite (features-kubernetes-2)	27m 17s
test-suite (features-kubernetes-2)	25m 28s
test-suite (features-variables)	22m 28s
test-suite (features-variables)	22m 28s
test-suite (services)	21m 27s
test-suite (services)	21m 27s
test-suite (tasks)	20m 26s
test-suite (tasks)	20m 26s
	6h 16m 47s

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