check or fix feature gates parameter in controllers
!1927 (merged) fixed a problem with the patch changing the featuregates parameter in capi controller
other controller remain to be fixed, or at least checked, for the same issue (we need to use $XXXXX instead of adding/replacing an arg which breaks each time the upstream kustomization evolves)
in particular https://gitlab.com/sylva-projects/sylva-core/-/blob/main/kustomize-units/cabpk/kustomization.yaml