Build(deps): Bump docker/setup-buildx-action from 3 to 4 #393

Job	Run time
Test BaSyx Client Example	3m 11s
Test BaSyx Operation Delegation Example	3m 19s
Test BaSyx Minimal Example	1m 48s
Test BaSyx Dynamic RBAC Example	4m 6s
Test BaSyx Kafka Example	1m 57s
Test BaSyx Reverse Proxy Example	1m 33s
Test BaSyx DataBridge Example	1m 46s
Test BaSyx Node-RED Example	1m 58s
Test BaSyx Secured Example	2m 14s
Test BaSyx Query Language Example	3m 6s
Test BaSyx CAD file Example	1m 41s
	26m 39s

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