[java][resttemplate] Add support for Jackson 3 and Spring Boot 4 in Java resttemplate #899

Job	Run time
Build Java Client JDK17 (samples/client/petstore/java/webclient-jakarta)	1m 37s
Build Java Client JDK17 (samples/client/petstore/java/resttemplate-jakarta)	1m 44s
Build Java Client JDK17 (samples/client/petstore/java/resttemplate-springBoot4-jackson2)	1m 32s
Build Java Client JDK17 (samples/client/petstore/java/restclient-springBoot4-jackson3)	1m 47s
Build Java Client JDK17 (samples/client/others/java/webclient-sealedInterface)	1m 49s
Build Java Client JDK17 (samples/client/petstore/java/restclient-swagger2)	2m 13s
Build Java Client JDK17 (samples/client/petstore/java/restclient-springBoot4-jackson2)	1m 52s
Build Java Client JDK17 (samples/client/others/java/webclient-sealedInterface_3_1)	1m 31s
Build Java Client JDK17 (samples/client/petstore/java/webclient-useSingleRequestParameter)	1m 50s
Build Java Client JDK17 (samples/client/others/java/restclient-enum-in-multipart)	1m 39s
Build Java Client JDK17 (samples/client/petstore/java/restclient-nullable-arrays)	1m 42s
Build Java Client JDK17 (samples/client/petstore/java/resttemplate-springBoot4-jackson3)	1m 42s
Build Java Client JDK17 (samples/client/petstore/java/restclient-useSingleRequestParameter)	2m 13s
Build Java Client JDK17 (samples/client/petstore/java/restclient)	2m 19s
Build Java Client JDK17 (samples/client/petstore/java/restclient-useSingleRequestParameter-static)	2m 22s
	27m 52s

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