flagger crd apiversion deprecation on k8s v1.19.+

[HaveFun83]

On k8s version v1.19.+ apiextensions.k8s.io/v1beta1 is deprecated in favor of apiextensions.k8s.io/v1.

The flagger crd is currently on v1beta1

Here are the kubectl get crd -oyaml output from a v1.19.0 cluster
https://gist.github.com/HaveFun83/da52049c7ed8bbbb823d11d5e7061186

[HaveFun83]

when flagger only has crds with apiextensions.k8s.io/v1 i got the following error on new canary releases

{"level":"error","ts":"2020-09-22T09:04:30.031Z","caller":"controller/controller.go:267","msg":"podinfo/podinfo unable to set initializing status: failed after retries: canaries.flagger.app \"podinfo\" not found","stacktrace":"github.com/weaveworks/flagger/pkg/controller.(*Controller).syncHandler\n\t/home/circleci/build/pkg/controller/controller.go:267\ngithub.com/weaveworks/flagger/pkg/controller.(*Controller).processNextWorkItem.func1\n\t/home/circleci/build/pkg/controller/controller.go:205\ngithub.com/weaveworks/flagger/pkg/controller.(*Controller).processNextWorkItem\n\t/home/circleci/build/pkg/controller/controller.go:212\ngithub.com/weaveworks/flagger/pkg/controller.(*Controller).Run.func1\n\t/home/circleci/build/pkg/controller/controller.go:168\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil.func1\n\t/go/pkg/mod/k8s.io/apimachinery@v0.18.8/pkg/util/wait/wait.go:155\nk8s.io/apimachinery/pkg/util/wait.BackoffUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.18.8/pkg/util/wait/wait.go:156\nk8s.io/apimachinery/pkg/util/wait.JitterUntil\n\t/go/pkg/mod/k8s.io/apimachinery@v0.18.8/pkg/util/wait/wait.go:133\nk8s.io/apimachinery/pkg/util/wait.Until\n\t/go/pkg/mod/k8s.io/apimachinery@v0.18.8/pkg/util/wait/wait.go:90"}

changed the crds back to https://raw.githubusercontent.com/weaveworks/flagger/master/artifacts/flagger/crd.yaml