Update dependency org.apache.rat:apache-rat to v0.18

Author: solrbot

gradle/libs.versions.toml

@@ -41,7 +41,7 @@ apache-kafka = "3.9.2"
 apache-log4j = "2.25.4"
 apache-lucene = "10.4.0"
 apache-opennlp = "2.5.9"
-apache-rat = "0.15"
+apache-rat = "0.18"
 apache-tika = "3.3.0"
 apache-tomcat = "6.0.53"
 apache-zookeeper = "3.9.5"