fix(deps): update dependency core-js to v3.13.1

Author: renovate-bot

client/package-lock.json

@@ -65,7 +65,7 @@
   "dependencies": {
     "axios": "0.21.1",
     "bulma": "0.9.2",
-    "core-js": "3.12.1",
+    "core-js": "3.13.1",
     "dayjs": "1.10.5",
     "react": "17.0.2",
     "react-dom": "17.0.2",