fix(build): Set EJS download to --noproxy to fix auth-server startup problem

Author: LZoog

packages/fxa-auth-server/scripts/install-ejs.sh

@@ -14,4 +14,5 @@ ejs_version=3.1.10
 [ ! -d "./vendor" ] && mkdir vendor
 
 # Download it from github
-curl -L https://github.com/mde/ejs/releases/download/v$ejs_version/ejs.min.js -o ./vendor/ejs.js
+# Use --noproxy to avoid yarn/npm proxy env vars causing 504 gateway timeouts
+curl -fL --noproxy '*' https://github.com/mde/ejs/releases/download/v$ejs_version/ejs.min.js -o ./vendor/ejs.js