chore: update version to alpha.3 w/ changelog

scripts/release/changelog.js

@@ -1,3 +1,5 @@
+#!/usr/bin/env node
+
 'use strict';
 /**
  * Creates a conventional changelog from the current git repository / metadata.
@@ -42,4 +44,4 @@ if (!isForce) {
 
 function getOutputStream() {
   return fs.createWriteStream('CHANGELOG.md');
-}
+}