GetHelperImageVersion returns the CLI version or 'latest'.

GetK3sVersion returns the version string for K3s.

GetVersion returns the version for cli, it gets it from "git describe --tags" or returns "dev" when doing simple go build.

HelperVersionOverride decouples the k3d helper image versions from the main version, if needed.

K3sVersion should contain the latest version tag of k3s (hardcoded at build time).

Version is the string that contains version.