samples: Update README in JWT sample #219

Job	Run time
Basic checks	46s
Build and publish artifacts and plugins locally	2m 36s
Run sbt test	4m 1s
Run annotation processor tests	1m 34s
Maven samples (shopping-cart-quickstart, true)	1m 3s
Check service docker image contents	41s
Maven samples (choreography-saga-quickstart, true)	51s
Maven samples (doc-snippets, false)	30s
Maven samples (view-store, true)	1m 21s
Maven samples (spring-dependency-injection, true)	46s
Maven samples (event-sourced-customer-registry, true)	49s
Maven samples (event-sourced-counter-brokers, docker compose up -d, true)	1m 52s
Maven samples (event-sourced-customer-registry-subscriber, true, ./start-upstream.sh)	1m 31s
Maven samples (key-value-counter, true)	1m 14s
Maven samples (key-value-shopping-cart, true)	40s
Maven samples (key-value-customer-registry, true)	55s
Maven samples (tracing, false)	27s
Maven samples (reliable-timers, true)	59s
Maven samples (transfer-workflow, true)	45s
Maven samples (transfer-workflow-compensation, true)	1m 10s
	24m 31s

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