Repository uses a deprecated version of core-js

[WaldemarEnns]

Problem

I try to follow the README.md and install the project locally. So i run npm install and it throws me the following error in the console:

npm install
npm WARN deprecated core-js@2.6.11: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.
npm ERR! Unexpected end of JSON input while parsing near '...4.0","lodash.uniq":"^'

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/enux/.npm/_logs/2020-01-29T12_48_51_713Z-debug.log

How to reproduce

Clone the repository:
git clone https://github.com/nuxt/example-auth0.git
cd example-auth0

Install the dependencies:
npm install

Solution proposal

The core-js dependency should be updated inside the package.json, package-lock.json and yarn.json.

_{This question is available on Nuxt community (#c43)}

[CMTY]

This issue as been imported as question since it does not respect example-auth0 issue template. Only bug reports and feature requests stays open to reduce maintainers workload.
If your issue is not a question, please mention the repo admin or moderator to change its type and it will be re-opened automatically.
Your question is available at https://cmty.app/nuxt/example-auth0/issues/c43.