Fixed #1 - Fixed the whatsnew-** script for loading release notes into builds

Added test to ensure that release notes are parsed properly
Updated to latest dependencies to fix security vulnerability
Updated GH Actions Workflow to run test before updating tag
Updated README.md to reflect proper whatsnew documentation.

node_modules/es-abstract/2018/TimeString.js

@@ -0,0 +1,25 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var $isNaN = require('../helpers/isNaN');
+var padTimeComponent = require('../helpers/padTimeComponent');
+
+var HourFromTime = require('./HourFromTime');
+var MinFromTime = require('./MinFromTime');
+var SecFromTime = require('./SecFromTime');
+var Type = require('./Type');
+
+// https://www.ecma-international.org/ecma-262/9.0/#sec-timestring
+
+module.exports = function TimeString(tv) {
+	if (Type(tv) !== 'Number' || $isNaN(tv)) {
+		throw new $TypeError('Assertion failed: `tv` must be a non-NaN Number');
+	}
+	var hour = HourFromTime(tv);
+	var minute = MinFromTime(tv);
+	var second = SecFromTime(tv);
+	return padTimeComponent(hour) + ':' + padTimeComponent(minute) + ':' + padTimeComponent(second) + '\x20GMT';
+};