KubeMQ Helm charts required Helm v3. Please download/upgrade from
helm repo add kubemq-charts https://kubemq-io.github.io/charts
helm install kubemq-operator kubemq-charts/operator
helm install kubemq-targets kubemq-charts/connector --set type=targets
helm install kubemq-sources kubemq-charts/connector --set type=sources
helm install kubemq-bridges kubemq-charts/connector --set type=bridges