Update plugin org.springframework.boot to v3.4.0

Author: renovate[bot]

build.gradle

@@ -5,7 +5,7 @@ plugins {
   id 'jacoco'
   id 'io.spring.dependency-management' version '1.1.6'
   id 'org.owasp.dependencycheck' version '10.0.4'
-  id 'org.springframework.boot' version '3.3.5'
+  id 'org.springframework.boot' version '3.4.0'
   id 'com.github.ben-manes.versions' version '0.51.0'
   id 'org.sonarqube' version '5.1.0.4882'
   id "org.flywaydb.flyway" version '9.22.3'