[spring]addition: api response examples + spring generator generates response examples (#17610, #16051) #865

Job	Run time
Build with JDK17 (samples/openapi3/client/petstore/spring-cloud-3)	1m 5s
Build with JDK17 (samples/client/petstore/spring-http-interface-reactive-noResponseEntity)	40s
Build with JDK17 (samples/server/petstore/java-camel/)	46s
Build with JDK17 (samples/server/petstore/java-helidon-server/v3/mp/)	37s
Build with JDK17 (samples/client/petstore/java/microprofile-rest-client-outer-enum)	46s
Build with JDK17 (samples/client/petstore/spring-http-interface-reactive)	39s
Build with JDK17 (samples/server/petstore/java-helidon-server/v3/se)	36s
Build with JDK17 (samples/client/petstore/java-helidon-client/v3/mp/)	39s
Build with JDK17 (samples/client/petstore/java-helidon-client/v3/se)	37s
Build with JDK17 (samples/openapi3/server/petstore/springboot-3)	1m 1s
Build with JDK17 (samples/client/petstore/spring-http-interface)	43s
Build with JDK17 (samples/client/petstore/java/webclient-jakarta)	39s
Build with JDK17 (samples/client/petstore/spring-http-interface-noResponseEntity)	37s
	9m 25s

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