use MPIR version compatible with latest Maven

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@1593704 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/it/aether/pom.xml b/src/it/aether/pom.xml
index 86c4798..d496015 100644
--- a/src/it/aether/pom.xml
+++ b/src/it/aether/pom.xml
@@ -58,7 +58,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-project-info-reports-plugin</artifactId>
-        <version>2.6</version>
+        <version>2.7</version>
         <reportSets>
           <reportSet>
             <reports>