Update core-js requirement from ^2.5.1 to ^3.0.1

Updates the requirements on [core-js](https://github.com/zloirock/core-js) to permit the latest version.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](zloirock/core-js@v2.5.1...v3.0.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

package.json

@@ -41,7 +41,7 @@
     "prepublish": "rc-tools run guard"
   },
   "devDependencies": {
-    "core-js": "^2.5.1",
+    "core-js": "^3.0.1",
     "expect.js": "0.3.x",
     "jquery": "^3.3.1",
     "pre-commit": "1.x",