Jest error: is-plain-obj: SyntaxError: Unexpected token 'export'

[gigitux]

Describe the bug

There is an issue with the current dependencies tree. If the package-lock.json and node_modules are deleted, and the dependencies are reinstalled, Jest will not be able to run tests anymore. This is the error:

woocommerce-gutenberg-products-block/node_modules/is-plain-obj/index.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){export default function isPlainObject(value) {
                                                                                      ^^^^^^

    SyntaxError: Unexpected token 'export'

This is the output of the npm ls is-plain-obj. On the right, the dependencies tree with the current package-lock, on the left the dependencies tree with a new installation without package-lock.json.

As you can see, the @wordpress/data package uses is-plain-obj@4.1.0 that contains the ES Module on a new installation.

Searching online, I found this PR on Gutenberg repo. I think the best solution is to upgrade all the @wordpress/* dependencies. We should do this after the webpack 5 migration.

To reproduce

Steps to reproduce the behavior:

1. Remove package-lock.json and node-modules.
2. Run npm install.
3. Run npm run test.
4. See error.

Expected behavior

Unit tests should run.