Update slf4j-version to v2.0.18

Author: xdev-renovate

chartjs-java-model/pom.xml

@@ -48,7 +48,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
-		<slf4j-version>2.0.17</slf4j-version>
+		<slf4j-version>2.0.18</slf4j-version>
 		<log4j-version>2.25.4</log4j-version>
 
 		<!-- by default run no tests as Docker is required -->