chore(deps): update dependency core-js to v3.21.1

Author: renovate-bot

package.json

@@ -46,7 +46,7 @@
     "@size-limit/preset-big-lib": "6.0.4",
     "babel-loader": "8.2.3",
     "concurrently": "6.5.1",
-    "core-js": "3.20.3",
+    "core-js": "3.21.1",
     "css-loader": "6.5.1",
     "eslint": "7.32.0",
     "eslint-config-prettier": "8.3.0",