* feat(manager): share OCI Helm chart resolution across managers
Add getOciChartDep() to helmv3/oci.ts and use it in argocd, fleet, flux,
helmfile, helmsman, helmv3, kustomize, sveltos, terraform and vendir.
- set pinDigests: false for OCI charts in all of them
- apply registryAliases to OCI charts in argocd, helmfile and helmsman
- keep the registry port in terraform helm_release repositories
- skip fleet OCI charts without a version instead of using 'undefined'
* docs(manager/helmv3): correct the OCI chart pinDigests rationale
* refactor(manager/helmfile): drop redundant OCI repository url guard
The repository schema already requires url to be a string, so the falsy
branch could not be reached by parsed input and left the patch partially
covered.
Sebastian Poxhofer