Bump to 2.541.x baseline (#530)

Author: strangelookingnerd

pom.xml

@@ -33,11 +33,12 @@
 
   <properties>
     <gitHubRepo>jenkinsci/custom-folder-icon-plugin</gitHubRepo>
-    <jenkins.baseline>2.528</jenkins.baseline>
-    <jenkins.version>2.539</jenkins.version>
+    <jenkins.baseline>2.555</jenkins.baseline>
+    <jenkins.version>${jenkins.baseline}.1</jenkins.version>
     <revision>2</revision>
     <changelist>999999-SNAPSHOT</changelist>
     <spotless.check.skip>false</spotless.check.skip>
+    <ban-commons-lang-2.skip>false</ban-commons-lang-2.skip>
     <ban-junit4-imports.skip>false</ban-junit4-imports.skip>
     <hpi.strictBundledArtifacts>true</hpi.strictBundledArtifacts>
   </properties>

src/test/java/jenkins/plugins/foldericon/UITest.java

@@ -144,7 +144,7 @@ void customFolderIconCroppieLoaded() throws Throwable {
 
             String src = null;
             if (!cropper.getElementsByTagName("img").isEmpty()) {
-                DomElement image = cropper.getElementsByTagName("img").get(0);
+                DomElement image = cropper.getElementsByTagName("img").getFirst();
                 src = image.getAttribute("src");
             }
             assertThat(src, notNullValue());