* Migrate to kustomize3: Phase 1. Update kustomization.yaml
* Migrate to kustomize3: Phase 2: Update kustomize.go
- Update kustomize.go to match new package structure.
- Update module dependencies.
* Migrate to kustomize3: Phase 3: Implements code review
- As per request, revert kustomization.yaml back to deprecated syntax.
- As per request, revert kustomize.go to use deprecated .Bases field.
- Note: patchesStrategicMerge: will be turned into a deprecated field pretty soon.
- Rerun go mod tidy
* Migrate to kustomize3: Phase 4: Activate legacy order transformer