Merge pull request #591 from jenkinsci/dependabot/maven/org.jenkins-ci-acceptance-test-harness-6504.v878e5b_e776d7

Bump org.jenkins-ci:acceptance-test-harness from 6483.vecb_7d34edb_75 to 6504.v878e5b_e776d7

Author: uhafner

ui-tests/pom.xml

@@ -48,7 +48,7 @@
     <dependency>
       <groupId>org.jenkins-ci</groupId>
       <artifactId>acceptance-test-harness</artifactId>
-      <version>6483.vecb_7d34edb_75</version>
+      <version>6504.v878e5b_e776d7</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>