is.js in flatpickr-4.6.9.0

- old
+ new

@@ -1,8 +1,8 @@
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
   typeof define === 'function' && define.amd ? define(['exports'], factory) :
-  (global = global || self, factory(global.is = {}));
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.is = {}));
 }(this, (function (exports) { 'use strict';
 
   var fp = typeof window !== "undefined" && window.flatpickr !== undefined
       ? window.flatpickr
       : {