Update dependency org.apache.maven.plugins:maven-surefire-plugin to v3.5.6

Author: xdev-renovate

chartjs-java-model/pom.xml

@@ -219,7 +219,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>3.5.5</version>
+				<version>3.5.6</version>
 				<configuration>
 					<skipTests>${skipTests}</skipTests>
 				</configuration>