v0.7.0

Changelog:

• Breaking change: The -pki prefix removed from certificates names

  To update existing clusters, please add --set certnameOverride <releaseName>-kubernetes-pki option, otherwise all the certificates will be reissued with new names.

• Update to Kubernetes v1.19.3

• Fix requestheader-allowed-names for apiserver

• Add digest option for specifying images