chore: add types for the configuration

[forivall]

This defines types for the config file, which can help when modifying the config file, as you can use a jsdoc type annotation to define the type and get some editor hints for the configuration options.

jest-mongodb-config.js

/** @type {import('@shelf/jest-mongodb').Config} */
module.exports = {
  mongodbMemoryServerOptions: {
    binary: {
      version: '4.0.3',
      skipMD5: true,
    },
    autoStart: false,
    instance: {},
  },
};

Pull Request Overview

This PR adds type definitions for the configuration used by Jest MongoDB setups to improve editor support through JSDoc annotations.

• Added type definitions in src/types.ts for various Mongo memory server options and the overall Config interface.
• Updated Jest MongoDB configuration files to include JSDoc type annotations.
• Modified helper functions to utilize the newly defined Config type when loading configuration.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
src/types.ts	Added type definitions to support configuration types.
jest-mongodb-config.js	Added JSDoc type annotation for Config on config export.
src/helpers.ts	Updated require calls to use Config type annotations.
jest-mongodb-config-repl.js	Added JSDoc type annotation for Config on config export.