Bump org.codehaus.mojo:flatten-maven-plugin from 1.7.1 to 1.7.2 (#699)

Author: dependabot[bot]

pom.xml

@@ -896,7 +896,7 @@
           <plugin>
             <groupId>org.codehaus.mojo</groupId>
             <artifactId>flatten-maven-plugin</artifactId>
-            <version>1.7.1</version>
+            <version>1.7.2</version>
             <configuration>
               <updatePomFile>true</updatePomFile>
             </configuration>