Move to apache.commons.lang3

apache.commons.lang3 is no more available in the Gerrit dependencies.
Move to the more recent lang3 version.

Bug: Issue 15843
Change-Id: I0e94dafd379678dfd156912c442010ed4834c155

src/main/java/com/googlesource/gerrit/plugins/its/jira/restapi/JiraRestApi.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/its/jira/restapi/JiraRestApi.java b/src/main/java/com/googlesource/gerrit/plugins/its/jira/restapi/JiraRestApi.java
index ef4c43f..bcd10a5 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/its/jira/restapi/JiraRestApi.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/its/jira/restapi/JiraRestApi.java
@@ -22,7 +22,7 @@
 import java.net.HttpURLConnection;
 import java.net.ProxySelector;
 import java.util.Base64;
-import org.apache.commons.lang.ArrayUtils;
+import org.apache.commons.lang3.ArrayUtils;
 
 /** Jira Rest Client. */
 public class JiraRestApi<T> {