Automatically detect the Helm version to use

[jfrancoa]

One of the problems with weaviate-local-k8s, mostly for old versions is that you need to know the Helm branch which corresponds to the Weaviate version, otherwise the deployment might fail (mostly when big changes happened between versions, like it's the case of pre-RAFT to RAFT).
To avoid that the user needs to remember this or know when to retreieve the version, local-k8s could use the following yaml, which is the one used to build the Weaviate Helm's site and will get updated with every new version being released. This way we don't need to keep a harcoded map of Weaviate version to Helm version.