update submodules once tezos-k8s is migrated to oxhead alpha

[orcutt989]

https://github.com/oxheadalpha/teztnets/blob/main/.gitmodules#L3

https://github.com/oxheadalpha/teztnets/blob/main/.gitmodules#L6

https://github.com/oxheadalpha/teztnets/blob/main/.gitmodules#L9