Fix CodecsAutoConfiguration following API change

Update CodecsAutoConfiguration to align with the latest Spring Framework
changes.

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/http/codec/CodecsAutoConfiguration.java

@@ -55,9 +55,9 @@ public class CodecsAutoConfiguration {
 		public CodecCustomizer jacksonCodecCustomizer(ObjectMapper objectMapper) {
 			return (configurer) -> {
 				CodecConfigurer.DefaultCodecs defaults = configurer.defaultCodecs();
-				defaults.jackson2Decoder(
+				defaults.jackson2JsonDecoder(
 						new Jackson2JsonDecoder(objectMapper, EMPTY_MIME_TYPES));
-				defaults.jackson2Encoder(
+				defaults.jackson2JsonEncoder(
 						new Jackson2JsonEncoder(objectMapper, EMPTY_MIME_TYPES));
 			};
 		}