Updated jQuery from 1.8.2 to 3.4.1 to address the prototype pollution issue (cucumber#1791)

Author: clarkead

core/src/main/java/io/cucumber/core/plugin/HTMLFormatter.java

@@ -58,7 +58,7 @@ public final class HTMLFormatter implements EventListener {
     private static final String[] TEXT_ASSETS = new String[]{
         "/io/cucumber/core/plugin/html/formatter.js",
         "/io/cucumber/core/plugin/html/index.html",
-        "/io/cucumber/core/plugin/html/jquery-1.8.2.min.js",
+        "/io/cucumber/core/plugin/html/jquery-3.4.1.min.js",
         "/io/cucumber/core/plugin/html/style.css"
     };
     private static final Map<String, String> MIME_TYPES_EXTENSIONS = new HashMap<String, String>() {

core/src/main/resources/io/cucumber/core/plugin/html/formatter.js

@@ -86,7 +86,7 @@ CucumberHTML.DOMFormatter = function(rootNode) {
     if (isLastStep) {
       if (currentSteps.find('.failed').length == 0) {
         // No failed steps. Collapse it.
-        currentElement.find('details').removeAttr('open');
+        currentElement.find('details').prop('open', false);
       } else {
         currentElement.find('details').attr('open', 'open');
       }

core/src/main/resources/io/cucumber/core/plugin/html/index.html

@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <title>Cucumber Features</title>
     <link href="style.css" rel="stylesheet">
-    <script src="jquery-1.8.2.min.js"></script>
+    <script src="jquery-3.4.1.min.js"></script>
     <script src="formatter.js"></script>
     <script src="report.js"></script>
   </head>