Adds ca-certificates installation step to Dockerfiles #342

Job	Run time
Test BaSyx Operation Delegation Example	3m 6s
Test BaSyx Dynamic RBAC Example	4m 12s
Test BaSyx CAD file Example	1m 44s
Test BaSyx Kafka Example	2m 9s
Test BaSyx Secured Example	2m 18s
Test BaSyx Query Language Example	2m 40s
Test BaSyx Minimal Example	1m 50s
Test BaSyx Client Example	3m 26s
Test BaSyx Reverse Proxy Example	1m 23s
Test BaSyx DataBridge Example	1m 56s
Test BaSyx Node-RED Example	2m 6s
	26m 50s

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