CD: update/centralize helm charts to deploy to o1Labs cluster

[dannywillems]

There are currently four nodes and one frontend deployed on the domain minaprotocol.network.
The IaaC repository is https://github.com/MinaFoundation/gitops-staging/tree/main/devnet/openmina/archive.

In this repository, we do have a helm directory (removed in #1201) which is probably outdated as it hasn't been modified for the past two years.