Fix esm compatibility with jest

[ahce]

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior?

Steps to reproduce:

1. Create package.json file

{
  "scripts": {
    "test": "jest"
  },
  "devDependencies": {
    "babel-loader": "9.1.3",
    "jest": "29.6.2"
  }
}

2. Create babel.test.js file

test('should import babel-loader correctly', () => {
  expect(require('babel-loader')).toBeInstanceOf(Function);
});

3. Run test
   Test fail: Error: You need to run with a version of node that supports ES Modules in the VM API. See https://jestjs.io/docs/ecmascript-modules

What is the new behavior?

The test pass successfully

Does this PR introduce a breaking change?

• Yes
• No

[nicolo-ribaudo]

Thanks! Does this actually fix compatibility? You can now require it, but can you use it in jest?

[ahce]

Thanks! Does this actually fix compatibility? You can now require it, but can you use it in jest?

Thanks for your reply!
I have a custom webpack plugin integrated with babel-loader, and from version 9.1.3 my tests fail.
I detected that in v9.1.3 this change was introduced in #995.
I applied this fix directly in node_modules and my tests work correctly.