Update dependency org.codehaus.mojo:flatten-maven-plugin to v1.8.0

Author: xdev-renovate

sessionize-java-client/pom.xml

@@ -218,7 +218,7 @@
 					<plugin>
 						<groupId>org.codehaus.mojo</groupId>
 						<artifactId>flatten-maven-plugin</artifactId>
-						<version>1.7.3</version>
+						<version>1.8.0</version>
 						<configuration>
 							<flattenMode>ossrh</flattenMode>
 						</configuration>