TS Typing error: "This expression is not constructable." when esModuleInterop is false

[fcaminada]

Bug Report

Hello, I am opening this issue as an follow-up to #16, which I believe still has issues with the TypeScript typing.
As I mentioned on my comment, it is not possible to correctly import this package with its current type exports if I use the esModuleInterop set as false.

• Operating System:
• Node Version: v14.15.1
• NPM Version: 7.0.14
• webpack Version: 5.11.0
• eslint-webpack-plugin Version: 2.4.0
• eslint version: 7.7.0
• Typescript version: 4.0.1

Expected Behavior

Importing "eslint-webpack-plugin" should correctly return the ESLintWebpackPlugin class and I should be able to instantiate it with the following code;

import ESLintWebpackPlugin = require("eslint-webpack-plugin");
import * as ESLintWebpackPlugin from "eslint-webpack-plugin"; // Alternative import.
import ESLintWebpackPlugin from "eslint-webpack-plugin" // when using esModuleInterop: true
...
new ESLintWebpackPlugin({
    // Options.
});

Actual Behavior

Importing the default exports causes either a TS or a JS error when esModuleInterop is disabled, as I better explain on my comment here.

Code and Reproduction:

https://gist.github.com/fcaminada/7d2cc25c74c3b7bdfe43246190c5d57d

The solution would be to follow the same example as other plugins such as CssMinimizerPlugin, for instance.

[ValYouW]

@ricardogobbosouza vscode ts type-check still gives an error on this when using require:

var ESLintWebpackPlugin = require('eslint-webpack-plugin');
new ESLintWebpackPlugin(); // error ts(2351)

Any idea? doesnt happen with other plugins (which use export = xxx instead of export default xxx in the declarations file)

thx