chore: Cleanup JsonSupport #208

Job	Run time
Build and publish artifacts and plugins locally	2m 41s
Basic checks	49s
Check service docker image contents	41s
Run sbt test	3m 55s
Run annotation processor tests	1m 48s
Maven samples (shopping-cart-quickstart, true)	1m 3s
Maven samples (choreography-saga-quickstart, true)	55s
Maven samples (doc-snippets, false)	31s
Maven samples (view-store, true)	1m 37s
Maven samples (spring-dependency-injection, true)	1m 8s
Maven samples (event-sourced-customer-registry, true)	54s
Maven samples (event-sourced-counter-brokers, docker compose up -d, true)	1m 37s
Maven samples (event-sourced-customer-registry-subscriber, true, ./start-upstream.sh)	1m 4s
Maven samples (key-value-counter, true)	46s
Maven samples (key-value-shopping-cart, true)	44s
Maven samples (key-value-customer-registry, true)	1m 15s
Maven samples (tracing, false)	28s
Maven samples (reliable-timers, true)	46s
Maven samples (transfer-workflow, true)	47s
Maven samples (transfer-workflow-compensation, true)	1m 10s
	24m 39s

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