Update Service check logic in AuditGroups

[SteffenWinternheimer]

Services, which don't exists but are checked in AuditGroups will break the AuditTAP. Update logic to catch this exception so it will result in the following:

Recommendation: Disabled + Service doesn't exist --> True
Recommendation: Enabled + Service exists--> False

Example:
RefId: WN19-CC-000200
AuditGroup: Microsoft Windows Server 2019-DISA-V1R2#RegistrySettings.ps1