Does not correctly tag digest pinned container image

Given image using tag with digest pinned it does not correct upload the image with tag v2.13.0 and gets deleted by untagged images policy :sweat_smile:

```yaml
argo-cd:
  global:
    image:
      repository: quay.io/argoproj/argocd
      tag: v2.13.0@sha256:5806aac0c6e4d04aeeb385a218cfeaeb4daaab9bfbc2b41f908788eb5b3d2909
```