chore(deps): update dependency core-js to ^3.12.0 (#3252)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -75,7 +75,7 @@
     "babel-jest": "^26.6.3",
     "babel-loader": "^8.2.2",
     "body-parser": "^1.19.0",
-    "core-js": "^3.11.2",
+    "core-js": "^3.12.0",
     "css-loader": "^5.2.4",
     "eslint": "^7.25.0",
     "eslint-config-prettier": "^8.3.0",