update optanon script

Author: amarantha-k

src/partials/head-last.hbs

@@ -1,7 +1,7 @@
 <link rel="stylesheet" href="{{{uiRootPath}}}/css/site.css">
 <script src="{{{uiRootPath}}}/js/vendor/jquery.js"></script>
 {{#with env.OPTANON_SCRIPT_URL}}
-<script src="{{this}}"></script>
+<script src="{{this}}" data-domain-script="{{env.OPTANON_SCRIPT_DATA_DOMAIN_SCRIPT}}"></script>
 <script>function OptanonWrapper(){}</script>
 {{/with}}
 {{#with site.keys.googleAnalytics}}