Update parent POM from 46 to 47.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1848802 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

pom.xml

@@ -25,7 +25,7 @@ limitations under the License.
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-parent</artifactId>
-    <version>46</version>
+    <version>47</version>
   </parent>
   <groupId>commons-codec</groupId>
   <artifactId>commons-codec</artifactId>