update

node_modules/core-js/modules/_core.js

@@ -1,2 +1,2 @@
-var core = module.exports = { version: '2.6.11' };
+var core = module.exports = { version: '2.6.12' };
 if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef

node_modules/core-js/modules/_shared.js

@@ -8,5 +8,5 @@ var store = global[SHARED] || (global[SHARED] = {});
 })('versions', []).push({
   version: core.version,
   mode: require('./_library') ? 'pure' : 'global',
-  copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
+  copyright: '© 2020 Denis Pushkarev (zloirock.ru)'
 });

node_modules/core-js/modules/es7.string.at.js

@@ -2,8 +2,13 @@
 // https://github.com/mathiasbynens/String.prototype.at
 var $export = require('./_export');
 var $at = require('./_string-at')(true);
+var $fails = require('./_fails');
 
-$export($export.P, 'String', {
+var FORCED = $fails(function () {
+  return '𠮷'.at(0) !== '𠮷';
+});
+
+$export($export.P + $export.F * FORCED, 'String', {
   at: function at(pos) {
     return $at(this, pos);
   }