Bump core-js from 3.8.3 to 3.9.0 in /webui/frontend (#104)

Bumps [core-js](https://github.com/zloirock/core-js) from 3.8.3 to 3.9.0.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](zloirock/core-js@v3.8.3...v3.9.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

webui/frontend/package.json

@@ -12,7 +12,7 @@
     "@vue/composition-api": "^1.0.0-rc.2",
     "axios": "^0.21.1",
     "bootstrap-vue": "^2.21.2",
-    "core-js": "^3.8.3",
+    "core-js": "^3.9.0",
     "vue": "^2.6.11",
     "vue-class-component": "^7.2.6",
     "vue-property-decorator": "^9.1.2",

webui/frontend/yarn.lock

@@ -2845,10 +2845,10 @@ core-js@^2.6.5:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.11.tgz#38831469f9922bded8ee21c9dc46985e0399308c"
   integrity sha512-5wjnpaT/3dV+XB4borEsnAYQchn00XSgTAWKDkEqv+K8KevjbzmofK6hfJ9TZIlpj2N0xQpazy7PiRQiWHqzWg==
 
-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@^3.6.5, core-js@^3.9.0:
+  version "3.9.0"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.9.0.tgz#790b1bb11553a2272b36e2625c7179db345492f8"
+  integrity sha512-PyFBJaLq93FlyYdsndE5VaueA9K5cNB7CGzeCj191YYLhkQM0gdZR2SKihM70oF0wdqKSKClv/tEBOpoRmdOVQ==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"