Add outbound blocking #147

Job	Run time
Smoke Test (eclipse-temurin:21-jdk-alpine, Java 21)	1m 23s
Smoke Test (ubuntu-latest, Java 21)	52s
Smoke Test (macos-latest, Java 21)	59s
Smoke Test (amazoncorretto:21-alpine, Java 21)	1m 22s
Smoke Test (azul/zulu-openjdk-alpine:21, Java 21)	1m 21s
Smoke Test (bellsoft/liberica-openjdk-alpine:21, Java 21)	1m 12s
	7m 9s

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