fix: naas test - new dev URL

Author: cnbishop

src/Elastic.Documentation.Site/Layout/_Header.cshtml

@@ -5,8 +5,8 @@
 		<div id="elastic-nav" hx-disable="true"></div>
 		@{
 			var elasticNavUrl = Model.Features.StagingElasticNavEnabled 
-				? "https://dev-naas-remove-sticky.app.elstc.co/elastic-nav.js"
-				: "https://dev-naas-remove-sticky.app.elstc.co/elastic-nav.js";
+				? "https://dev-refactor-nav-2.app.elstc.co/elastic-nav.js"
+				: "https://dev-refactor-nav-2.app.elstc.co/elastic-nav.js";
 		}
 		<script src="@elasticNavUrl" async></script>
 	</div>