Checkmk Werk 14434: FIX chrony check no longer crashes if section is not available

ID: 14434 Title: FIX chrony check no longer crashes if section is not available Component: Checks & agents Level: 1 Class: Bug fix Version: 2.2.0i1 Chrony check no longer crashes if the section is not available and the service was previously discovered. Instead of crashing, now it moves to an UNKWOWN state.