Upgrade nats subchart to v1.2 #1365

Job	Run time
test-suite (active-standby-kubernetes)	32m 9s
test-suite (active-standby-kubernetes)	32m 9s
test-suite (api)	40m 40s
test-suite (api)	36m 45s
test-suite (deploytarget)	27m 56s
test-suite (deploytarget)	27m 56s
test-suite (features-kubernetes)	40m 58s
test-suite (features-kubernetes)	41m 13s
test-suite (features-kubernetes-2)	41m 33s
test-suite (features-kubernetes-2)	35m 31s
test-suite (features-variables)	31m 26s
test-suite (features-variables)	31m 26s
test-suite (services)	31m 59s
test-suite (services)	31m 59s
test-suite (tasks)	27m 28s
test-suite (tasks)	27m 28s
	8h 58m 36s

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