Adapt TestUser.newIdent to Gerrit v3.0

Change-Id: I24642a477861c65039cd0a86b82c01cba769abbd
diff --git a/src/test/java/com/googlesource/gerrit/plugins/its/jira/JiraITTest.java b/src/test/java/com/googlesource/gerrit/plugins/its/jira/JiraITTest.java
index e277f46..0071eea 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/its/jira/JiraITTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/its/jira/JiraITTest.java
@@ -257,7 +257,7 @@
 
   private void createChangeWithIssue() throws Exception {
     pushFactory
-        .create(admin.getIdent(), testRepo, JIRA_ISSUE, "a.txt", "test")
+        .create(admin.newIdent(), testRepo, JIRA_ISSUE, "a.txt", "test")
         .to("refs/for/master");
   }