fix(deps): update dependency org.springframework.boot:spring-boot-dependencies to v3.5.6 (#602)

Co-authored-by: Renovate Bot <[email protected]>

Author: spring-builds

build.gradle

@@ -32,7 +32,7 @@ buildscript {
 apply plugin: "io.spring.nohttp"
 
 ext {
-    springBootVersion = "3.5.5"
+    springBootVersion = "3.5.6"
     springCloudVersion = "2025.0.0"
     javaCfEnvVersion = "3.5.0"
     nohttpVersion = "0.0.11"