Upgrade to SLF4J 2.0.16

Closes gh-747

Author: rainboyan

gradle/libs.versions.toml

@@ -51,7 +51,7 @@ mockito = "5.7.0"
 mongodb-java-driver = "4.6.1"
 objenesis = "3.4"
 sitemesh = "2.6.0"
-slf4j = "2.0.13"
+slf4j = "2.0.16"
 snakeyaml = "2.0"
 spock = "2.3-groovy-4.0"
 spring-boot = "3.2.11"