concourse - support kubernetes 1.16 and up

[ramonskie]

support kubernetes 1.16 and higher

i needed to add the selector see
#7726

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @ramonskie. Thanks for your PR.

I'm waiting for a helm member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[ramonskie]

there is still an issue where it creates a second namespace *-main and its empty not sure where its coming from.

[zanhsieh]

@ramonskie
Could you sign DCO and bump chart to latest version please?

[ramonskie]

this pr can be closed as its moved to concourse/concourse-chart#10