Remove all non null values that are returned #740

Job	Run time
AAS Environment MongoDB - Build and Start Docker Image	2m 20s
AAS Repository MongoDB - Build and Start Docker Image	2m 17s
AAS Repository - Build and Start Docker Image	2m 0s
AASX File Server - Build and Start Docker Image	2m 7s
AAS Registry Kafka Mem - Build and Start Docker Image	3m 16s
Submodel Repository MongoDB - Build and Start Docker Image	2m 45s
AAS Discovery - Build and Start Docker Image	2m 5s
Submodel Registry Kafka Mem - Build and Start Docker Image	3m 4s
AAS Registry Log MongoDB - Build and Start Docker Image	2m 28s
Submodel Service - Build and Start Docker Image	1m 58s
AAS Registry Kafka MongoDB - Build and Start Docker Image	3m 27s
Submodel Repository - Build and Start Docker Image	1m 59s
Concept Description Repository - Build and Start Docker Image	1m 53s
AAS Registry Log Mem - Build and Start Docker Image	2m 2s
AAS Environment - Build and Start Docker Image	2m 1s
Submodel Registry Kafka MongoDB - Build and Start Docker Image	3m 9s
AAS Discovery MongoDB - Build and Start Docker Image	2m 39s
Concept Description Repository MongoDB - Build and Start Docker Image	2m 22s
Submodel Registry Log Mem - Build and Start Docker Image	2m 21s
Submodel Registry Log MongoDB - Build and Start Docker Image	3m 15s
	49m 28s

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