[ENH] Add helm chart validator

[viniciusdc]

Recently we ended up having some issues with outdated helm charts and/or missing charts that impacted our deployment greatly.

I suggest we add some kind of tracking system to have an index maintained/generated on the fly for each helm chart been used in the project -- except the ones present as sub-requirements for services. Then based on this index add a pipeline/pytest to validate the installations.

this addition is not "necessary" as we would encounter all these issues doing the deployments directly or by using the integration tests, though we gain some pre-caution system to spot such issues more easily.