Update apps version refs to 5.0.0 / 3.0.0 (#5896) #1584

Job	Run time
scan	3m 13s
build	29m 44s
Build and Publish Images / Prepare Job	8s
Build and Publish Images / Build extra images	43s
Build and Publish Images / Publish (spring-cloud-dataflow-server, spring-cloud-dataflow-server/target, springcloud/spring-cl...	1m 37s
Build and Publish Images / Publish (spring-cloud-dataflow-single-step-batch-job, spring-cloud-dataflow-single-step-batch-job...	1m 30s
Build and Publish Images / Publish (spring-cloud-dataflow-composed-task-runner, spring-cloud-dataflow-composed-task-runner/t...	1m 13s
Build and Publish Images / Publish (spring-cloud-dataflow-tasklauncher-sink-rabbit, spring-cloud-dataflow-tasklauncher/sprin...	1m 17s
Build and Publish Images / Publish (spring-cloud-dataflow-tasklauncher-sink-kafka, spring-cloud-dataflow-tasklauncher/spring...	2m 7s
Build and Publish Images / Publish (spring-cloud-skipper-server, spring-cloud-skipper/spring-cloud-skipper-server/target, sp...	2m 21s
done	1s
	43m 54s

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