Update spring boot to v4

Author: renovate[bot]

pom.xml

@@ -85,7 +85,7 @@
     <mybatis-velocity.version>2.3.0</mybatis-velocity.version>
     <mybatis-freemarker.version>1.3.0</mybatis-freemarker.version>
     <mybatis-dynamic-sql.version>1.5.2</mybatis-dynamic-sql.version>
-    <spring-boot.version>2.7.18</spring-boot.version>
+    <spring-boot.version>4.0.0</spring-boot.version>
     <spring-native.version>0.12.2</spring-native.version>
 
     <!-- Reproducible Builds -->