adding AST to the build pipeline

sign.js

@@ -1,8 +1,8 @@
 exports.default = async function(configuration) {
-  console.log(`config:\n${JSON.stringify(configuration)}`)
+  console.log(`config:\n${JSON.stringify(configuration, null, 4)}`)
 
   require("child_process").execSync(
-    `echo 'Heyo!'`,
+    `azuresigntool sign --help`,
     {
       stdio: "inherit"
     }