Use author of the last commit for "pushed by" description

CHANGELOG.md

@@ -10,6 +10,7 @@ ChangeLog
 * #69: Link to gitlab merge request url in getShortDescription posted to jenkins
 * #396: Jenkins job stuck publishing build status
 * #400: Fix gitlabBuilds step to actually use 'pending'
+* JENKINS-35258: ci-skip and author should use the latest commit, not the first one from the push event
 
 1.3.0
 =====================

src/main/java/com/dabsquared/gitlabjenkins/trigger/handler/push/PushHookTriggerHandlerImpl.java

@@ -104,7 +104,7 @@ class PushHookTriggerHandlerImpl extends AbstractWebHookTriggerHandler<PushHook>
 
         final List<Commit> commits = hook.getCommits();
         if (commits != null && !commits.isEmpty()) {
-            return commits.get(0).getAuthor().getName();
+            return commits.get(commits.size() - 1).getAuthor().getName();
         }
 
         return null;