[SPARK-18782][BUILD] Bump Hadoop 2.6 version to use Hadoop 2.6.5

**What changes were proposed in this pull request?**

Use Hadoop 2.6.5 for the Hadoop 2.6 profile, I see a bunch of fixes including security ones in the release notes that we should pick up

**How was this patch tested?**

Running the unit tests now with IBM's SDK for Java and let's see what happens with OpenJDK in the community builder - expecting no trouble as it is only a minor release.

Author: Adam Roberts <aroberts@uk.ibm.com>

Closes #16616 from a-roberts/Hadoop265Bumper.

dev/deps/spark-deps-hadoop-2.6

@@ -59,21 +59,21 @@ gson-2.2.4.jar
 guava-14.0.1.jar
 guice-3.0.jar
 guice-servlet-3.0.jar
-hadoop-annotations-2.6.4.jar
-hadoop-auth-2.6.4.jar
-hadoop-client-2.6.4.jar
-hadoop-common-2.6.4.jar
-hadoop-hdfs-2.6.4.jar
-hadoop-mapreduce-client-app-2.6.4.jar
-hadoop-mapreduce-client-common-2.6.4.jar
-hadoop-mapreduce-client-core-2.6.4.jar
-hadoop-mapreduce-client-jobclient-2.6.4.jar
-hadoop-mapreduce-client-shuffle-2.6.4.jar
-hadoop-yarn-api-2.6.4.jar
-hadoop-yarn-client-2.6.4.jar
-hadoop-yarn-common-2.6.4.jar
-hadoop-yarn-server-common-2.6.4.jar
-hadoop-yarn-server-web-proxy-2.6.4.jar
+hadoop-annotations-2.6.5.jar
+hadoop-auth-2.6.5.jar
+hadoop-client-2.6.5.jar
+hadoop-common-2.6.5.jar
+hadoop-hdfs-2.6.5.jar
+hadoop-mapreduce-client-app-2.6.5.jar
+hadoop-mapreduce-client-common-2.6.5.jar
+hadoop-mapreduce-client-core-2.6.5.jar
+hadoop-mapreduce-client-jobclient-2.6.5.jar
+hadoop-mapreduce-client-shuffle-2.6.5.jar
+hadoop-yarn-api-2.6.5.jar
+hadoop-yarn-client-2.6.5.jar
+hadoop-yarn-common-2.6.5.jar
+hadoop-yarn-server-common-2.6.5.jar
+hadoop-yarn-server-web-proxy-2.6.5.jar
 hk2-api-2.4.0-b34.jar
 hk2-locator-2.4.0-b34.jar
 hk2-utils-2.4.0-b34.jar

pom.xml

@@ -2571,7 +2571,7 @@
     <profile>
       <id>hadoop-2.6</id>
       <properties>
-        <hadoop.version>2.6.4</hadoop.version>
+        <hadoop.version>2.6.5</hadoop.version>
         <jets3t.version>0.9.3</jets3t.version>
         <zookeeper.version>3.4.6</zookeeper.version>
         <curator.version>2.6.0</curator.version>