Upgrade to Spring Boot 3.4.7

Closes gh-1097

Author: rainboyan

gradle/libs.versions.toml

@@ -61,7 +61,7 @@ sitemesh = "2.6.0"
 slf4j = "2.0.17"
 snakeyaml = "2.3"
 spock = "2.3-groovy-4.0"
-spring-boot = "3.4.6"
+spring-boot = "3.4.7"
 spring-dependency-management = "1.1.7"
 spring-framework = "6.2.7"
 tomcat = "10.1.42"