Update dependency org.springframework.boot:spring-boot-starter-json to v4

pom.xml

@@ -30,12 +30,12 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-json</artifactId>
-            <version>3.5.7</version>
+            <version>4.0.0</version>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
-            <version>4.0.0</version>
+            <version>3.5.7</version>
         </dependency>
 
         <!-- Security and Auth -->