chore(deps): bump helm/chart-testing-action from 2.4.0 to 2.6.0 and fix lint command #1400

Job	Run time
test-suite (active-standby-kubernetes)	30m 12s
test-suite (api)	28m 4s
test-suite (deploytarget)	29m 41s
test-suite (features-kubernetes)	22m 23s
test-suite (features-kubernetes-2)	22m 6s
test-suite (features-variables)	22m 39s
test-suite (services)	22m 27s
test-suite (tasks)	29m 56s
	3h 27m 28s

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