build(deps): bump core-js from 3.12.1 to 3.16.1 in /website/client (#13433)

Bumps [core-js](https://github.com/zloirock/core-js) from 3.12.1 to 3.16.1.
- [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/compare/v3.12.1...v3.16.1)

---
updated-dependencies:
- dependency-name: core-js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

website/client/package-lock.json

@@ -15877,9 +15877,9 @@
       }
     },
     "core-js": {
-      "version": "3.12.1",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.12.1.tgz",
-      "integrity": "sha512-Ne9DKPHTObRuB09Dru5AjwKjY4cJHVGu+y5f7coGn1E9Grkc3p2iBwE9AI/nJzsE29mQF7oq+mhYYRqOMFN1Bw=="
+      "version": "3.16.1",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.16.1.tgz",
+      "integrity": "sha512-AAkP8i35EbefU+JddyWi12AWE9f2N/qr/pwnDtWz4nyUIBGMJPX99ANFFRSw6FefM374lDujdtLDyhN2A/btHw=="
     },
     "core-js-compat": {
       "version": "3.11.0",

website/client/package.json

@@ -31,7 +31,7 @@
     "bootstrap": "^4.6.0",
     "bootstrap-vue": "^2.21.2",
     "chai": "^4.3.4",
-    "core-js": "^3.12.1",
+    "core-js": "^3.16.1",
     "eslint": "^6.8.0",
     "eslint-config-habitrpg": "^6.2.0",
     "eslint-plugin-mocha": "^5.3.0",