chore(snowplow): update version

Author: Thomas Corthouts

views/shared/_snowplow.ejs

@@ -4,7 +4,7 @@
     ;(function(p,l,o,w,i,n,g){if(!p[i]){p.GlobalSnowplowNamespace=p.GlobalSnowplowNamespace||[];
     p.GlobalSnowplowNamespace.push(i);p[i]=function(){(p[i].q=p[i].q||[]).push(arguments)
     };p[i].q=p[i].q||[];n=l.createElement(o);g=l.getElementsByTagName(o)[0];n.async=1;
-    n.src=w;g.parentNode.insertBefore(n,g)}}(window,document,"script","//cdn.datacamp.com/sp/2.9.3.js","snowplow"));
+    n.src=w;g.parentNode.insertBefore(n,g)}}(window,document,"script","//cdn.datacamp.com/sp/2.10.2.js","snowplow"));
 
     var options = {
       appId: 'rdocumentation',