Checkmk Werk 14571: KUBE: Allow invalid value for `names` field of Node

ID: 14571 Title: KUBE: Allow invalid value for `names` field of Node Component: Checks & agents Level: 1 Class: Bug fix Version: 2.2.0i1 Previously, if the field <tt>.status.images</tt> of a Kubernetes Node contained any element with <tt>names</tt> set to <tt>null</tt>, the API response would be rejected by agent_kube with the error C+: [special_kube] Agent exited with code 1: Invalid value for `names`, must not be `None` C-: With this change, this error is fixed.