fix(NODE-6732): test and fix webpack bundling

[durran]

Description

Fixes webpack bundling and adds tests.

What is changing?

• Fixes the require to be able to be bundled by wekbpack and adds tests.

Is there new documentation needed for these changes?

None

> $ npm run build                                                                                     ⬡ 20.17.0 [±NODE-6732 ●●]

> [email protected] build
> webpack --mode=production --node-env=production

asset ddd8623158585010a372d5db2a6fe99d.node 268 KiB [emitted] (auxiliary name: main)
asset main.js 4.79 KiB [emitted] [minimized] (name: main)
runtime modules 150 bytes 2 modules
cacheable modules 15.9 KiB
  modules by path ./node_modules/kerberos/lib/ 14.2 KiB
    ./node_modules/kerberos/lib/index.js 419 bytes [built] [code generated]
    ./node_modules/kerberos/lib/kerberos.js 7.51 KiB [built] [code generated]
    ./node_modules/kerberos/lib/auth_processes/mongodb.js 3.65 KiB [built] [code generated]
    ./node_modules/kerberos/lib/util.js 2.59 KiB [built] [code generated]
  ./src/index.js 75 bytes [built] [code generated]
  ./node_modules/kerberos/package.json 1.48 KiB [built] [code generated]
  ./node_modules/kerberos/build/Release/kerberos.node 197 bytes [built] [code generated]
external "dns" 42 bytes [built] [code generated]
external "path" 42 bytes [optional] [built] [code generated]

WARNING in ./node_modules/kerberos/lib/util.js 91:13-52
Module not found: Error: Can't resolve '../build/Debug/kerberos.node' in '/Users/modetojoy/work/mongodb-js/kerberos/test/bundling/webpack/node_modules/kerberos/lib'
 @ ./node_modules/kerberos/lib/kerberos.js 3:42-59
 @ ./node_modules/kerberos/lib/index.js 3:17-38
 @ ./src/index.js 2:17-36

1 warning has detailed information that is not shown.
Use 'stats.errorDetails: true' resp. '--stats-error-details' to show it.

webpack 5.97.1 compiled with 1 warning in 255 ms

What is the motivation for this change?

NODE-6732

Release Highlight

Package is now compatible with Webpack

In order to use this module when bundling with Webpack, please include in your webpack.config.js:

  target: 'node',
  module: {
    rules: [
      {
        test: /\.node$/i,
        loader: 'node-loader'
      }
    ]
  }

Double check the following

• Ran npm run check:lint script
• Self-review completed using the steps outlined here
• PR title follows the correct format: type(NODE-xxxx)[!]: description
  • Example: feat(NODE-1234)!: rewriting everything in coffeescript
• Changes are covered by tests
• New TODOs have a related JIRA ticket