update guest os identifiers for vsphere 6.7

vSphere 6.7 adds new guest os identifiers. We need to update [our mapping data](https://github.com/dm-drogeriemarkt/foreman_wreckingball/blob/master/app/lib/vsphere_os_identifiers/data.yaml) to support the new identifiers.

Core PR: https://github.com/theforeman/foreman/pull/6778