Update plugin org.springframework.boot to v3.5.4 (#75)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build.gradle

@@ -2,7 +2,7 @@ plugins {
 	id 'java'
 	id 'java-library'
 	id 'maven-publish'
-	id 'org.springframework.boot' version '3.5.3'
+	id 'org.springframework.boot' version '3.5.4'
 	id 'io.spring.dependency-management' version '1.1.7'
 	id 'org.owasp.dependencycheck' version '12.1.3'
 	id 'checkstyle'