Add use-pr-linker workflow to auto-link PRs to issues #349

Job	Run time
build-kafka-admin-client / maven-build	40s
build-websub	1m 13s
build-consolidator	1m 6s
sonar-analysis-kafka-admin-client	0s
publish-to-nexus-kafka-admin-client	0s
build-consolidator-dockers / build-docker-warning	5s
build-consolidator-dockers / build-dockers	1m 26s
build-websub-dockers / build-docker-warning	4s
build-websub-dockers / build-dockers	1m 35s
	6m 9s

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