chore: Proto ByteString in EventingTestKit.IncomingMessages.publish #187

Job	Run time
Build and publish artifacts and plugins locally	3m 10s
Basic checks	53s
Check service docker image contents	57s
Maven samples (shopping-cart-quickstart, true)	1m 4s
Run annotation processor tests	1m 37s
Maven samples (choreography-saga-quickstart, true)	55s
Run sbt test	4m 34s
Maven samples (doc-snippets, false)	30s
Maven samples (view-store, true)	1m 38s
Maven samples (spring-dependency-injection, true)	48s
Maven samples (event-sourced-customer-registry, true)	50s
Maven samples (event-sourced-counter-brokers, docker compose up -d, true)	1m 36s
Maven samples (event-sourced-customer-registry-subscriber, true, ./start-upstream.sh)	1m 4s
Maven samples (key-value-counter, true)	1m 9s
Maven samples (key-value-shopping-cart, true)	44s
Maven samples (key-value-customer-registry, true)	1m 11s
Maven samples (tracing, false)	29s
Maven samples (reliable-timers, true)	41s
Maven samples (transfer-workflow, true)	59s
Maven samples (transfer-workflow-compensation, true)	58s
	25m 47s

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