Update CDN domain in snippet

Author: blazzy

amplitude-snippet.min.js

@@ -1,6 +1,6 @@
 (function(e,t){var n=e.amplitude||{_q:[],_iq:{}};var r=t.createElement("script")
 ;r.type="text/javascript";r.async=true
-;r.src="https://d24n15hnbwhuhn.cloudfront.net/libs/amplitude-3.8.0-min.gz.js"
+;r.src="https://cdn.amplitude.com/libs/amplitude-3.8.0-min.gz.js"
 ;r.onload=function(){if(e.amplitude.runQueuedFunctions){
 e.amplitude.runQueuedFunctions()}else{
 console.log("[Amplitude] Error: could not load SDK")}}