harbor-init unit timeout, possibly missing depends_on declarations

harbor-init unit must be missing depends_on declarations

I noticed this error in https://gitlab.com/sylva-projects/sylva-core/-/jobs/12900792078:

unit Kustomization/harbor-init did not became ready after 5m0s
Details on Kustomization/harbor-init and related resources:
IDENTIFIER                                   STATUS     REASON            MESSAGE
Kustomization/sylva-system/harbor-init       InProgress                   Kustomization generation is 3, but latest observed generation is 2
╰┄╴ExternalSecret/harbor/eso-harbor-oidc     InProgress                   could not get secret data from provider
   ├┄╴┬┄┄[Conditions]
   ┆  ╰┄╴Ready                               False      SecretSyncedError could not get secret data from provider
   ╰┄╴┬┄┄[Events]
      ├┄╴2026-01-28 17:20:02                 Normal     Created           secret created
      ╰┄╴2026-01-28 19:04:37 (x9 over 4m13s) Warning    UpdateFailed      error processing spec.data[0] (key: harbor-oidc-client-secret), err: secrets "harbor-oidc-client-secret" not found

This is likely to be related to !6476 (merged)

/cc @Andra.Deli