build(deps-dev): Bump core-js from 3.8.3 to 3.9.1

Bumps [core-js](https://github.com/zloirock/core-js/tree/HEAD/packages/core-js) from 3.8.3 to 3.9.1.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/commits/v3.9.1/packages/core-js)

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

package.json

@@ -236,7 +236,7 @@
     "chai": "^4.3.0",
     "chalk": "^4.1.0",
     "copy-webpack-plugin": "^6.4.1",
-    "core-js": "^3.8.3",
+    "core-js": "^3.9.1",
     "cross-env": "^7.0.3",
     "css-loader": "^5.0.2",
     "del": "^6.0.0",

yarn.lock

@@ -3769,10 +3769,10 @@ core-js@^2.4.0, core-js@^2.5.0:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.11.tgz#38831469f9922bded8ee21c9dc46985e0399308c"
   integrity sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg==
 
-core-js@^3.4.4, core-js@^3.6.5, core-js@^3.8.3:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.8.3.tgz#c21906e1f14f3689f93abcc6e26883550dd92dd0"
-  integrity sha512-KPYXeVZYemC2TkNEkX/01I+7yd+nX3KddKwZ1Ww7SKWdI2wQprSgLmrTddT8nw92AjEklTsPBoSdQBhbI1bQ6Q==
+core-js@^3.4.4, core-js@^3.6.5, core-js@^3.9.1:
+  version "3.9.1"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.9.1.tgz#cec8de593db8eb2a85ffb0dbdeb312cb6e5460ae"
+  integrity sha512-gSjRvzkxQc1zjM/5paAmL4idJBFzuJoo+jDjF1tStYFMV2ERfD02HhahhCGXUyHxQRG4yFKVSdO6g62eoRMcDg==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"