Fails to build with babel core version specified in package.json

# Bug report

## Node Version
12.18.3

## Environment
Linux and Windows PC

## Current behaviour

I'm trying to run the code locally and there seems to be a build failure when I run `npm run start` (this is after I did an `npm install`):

🚨 Build failed.
@parcel/transformer-babel: babelCore(...).loadPartialConfigAsync is not a function

And the site cannot be reached.

## Suggested solution

Digging into this it looks like it is something missing in babel core which is currently using version 7.2.0. So I tired bumping the babel version to 7.14.0 and the problem went away. I can do a pull request if that helps.