Add the possibility to add annotations to CRDs of Scale Set controller

[altingjonbalajj]

If you use ArgoCD to manage the Helm Chart deployment in Kubernetes there will come a point where adding the annotation of last applied resource shows an error and that is added on Client Side apply.

For this in ArgoCD an annotation is added to these resources so specific resources are applied using Server Side apply and the annotation of last applied is not defined in the resource anymore.
https://argo-cd.readthedocs.io/en/latest/user-guide/sync-options/#server-side-apply

[drew-viles]

This is massively needed as a good number of people will use Argo and sooner or later a good number will hit this issue. There has been a PR open for a long time now with absolutely no movement on something that is such a simple addition. This conversation has been left for almost a full yeah with not action at all.

It's a simple solution to a big problem for a large user base yet GitHub seem reluctent to provide this small quality of life improvement.

I'd happily recontribute this addition to the Helm Chart if the out of date PR is the problem.