Gantt: fix unstable screenshot tests (DevExpress#29028)

Author: Krijovnick

e2e/testcafe-devextreme/tests/container.html

@@ -16,7 +16,8 @@
     <link rel="dx-theme" data-theme="fluent.saas.light" href="../../../packages/devextreme/artifacts/css/dx.fluent.saas.light.css" data-active="false">
     <link rel="dx-theme" data-theme="fluent.saas.dark" href="../../../packages/devextreme/artifacts/css/dx.fluent.saas.dark.css" data-active="false">
     <link rel="dx-theme" data-theme="generic.greenmist" href="../../../packages/devextreme/artifacts/css/dx.greenmist.css" data-active="false">
-    <link rel="stylesheet" href="../../../packages/devextreme/artifacts/css/dx-gantt.min.css" />
+    
+    <link rel="stylesheet" type="text/css" href="../../../packages/devextreme/node_modules/devexpress-gantt/dist/dx-gantt.min.css"/>
 
     <script type="text/javascript" src="../../../packages/devextreme/artifacts/js/jquery.min.js"></script>
     <script type="text/javascript" src="../../../packages/devextreme/artifacts/js/dx-quill.min.js"></script>