Adds ca-certificates installation step to Dockerfiles #341

Job	Run time
Test BaSyx Dynamic RBAC Example	4m 12s
Test BaSyx Reverse Proxy Example	1m 26s
Test BaSyx Secured Example	2m 7s
Test BaSyx DataBridge Example	1m 44s
Test BaSyx Node-RED Example	1m 57s
Test BaSyx Operation Delegation Example	2m 48s
Test BaSyx Minimal Example	1m 51s
Test BaSyx Query Language Example	2m 55s
Test BaSyx Client Example	3m 41s
Test BaSyx Kafka Example	2m 1s
Test BaSyx CAD file Example	1m 37s
	26m 19s

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