build(deps): update dependency org.codehaus.mojo:flatten-maven-plugin to v1.6.0 (#595)

Author: renovate-bot

java-shared-config/pom.xml

@@ -186,7 +186,7 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>flatten-maven-plugin</artifactId>
-          <version>1.3.0</version>
+          <version>1.6.0</version>
           <executions>
             <!-- enable flattening -->
             <execution>