HADOOP-15054. upgrade hadoop dependency on commons-codec to 1.11.

hadoop-project/pom.xml

@@ -595,7 +595,7 @@
       <dependency>
         <groupId>commons-codec</groupId>
         <artifactId>commons-codec</artifactId>
-        <version>1.4</version>
+        <version>1.11</version>
       </dependency>
       <dependency>
         <groupId>commons-net</groupId>