Uploading file crashes application when built with webpack
Hi

I am trying to use `graphql-upload` in a typescript app built with webpack.

### My setup

- Typescript app
- Apollo server / Typegraphql
- Build with webpack

### My Code
(stripped down to the essentials)

https://github.com/ziggy6792/graphql-file-uploads 

### My Problem

When I run with ts-node `yarn start:ts:node` then run `yarn test` an image gets uploaded no problem

But then I build with webpack `yarn start` then run `yarn test` I get the following error

```
/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:56105
            if (!isObject(operations) && !Array.isArray(operations))
                 ^

TypeError: isObject is not a function
    at Busboy.<anonymous> (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:56105:18)
    at Busboy.emit (node:events:378:20)
    at Busboy.module.exports../node_modules/busboy/lib/main.js.Busboy.emit (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:32204:33)
    at PartStream.onEnd (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:32528:15)
    at PartStream.emit (node:events:390:22)
    at Dicer.onPart (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:32386:13)
    at Dicer.emit (node:events:378:20)
    at Dicer.module.exports../node_modules/dicer/lib/Dicer.js.Dicer.emit (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:45439:35)
    at Dicer.module.exports../node_modules/dicer/lib/Dicer.js.Dicer._oninfo (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:45540:12)
    at SBMH.<anonymous> (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:45486:10)
[nodemon] app crashed - waiting for file changes before starting...
```

### My Attempts to solve

Sorry I am not sure if this actually a problem with `graphql-upload` or `webpack` or something else. I also noticed that my issue looks similar to this [issue](https://github.com/jaydenseric/graphql-upload/issues/218), but I didn't really understand if there were any fixes to that issue and if indeed it is the same issue I am facing. 

I tried to upgrade webpack (branch `upgraded-packages`) but this made the problem worse as I get this issue when I start the server

```
TypeError: Cannot read property 'graphql' of undefined
    at getPeerDependencyGraphQLRequirement (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:104216:44)
    at Object.ensureInstalledCorrectGraphQLPackage (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:104221:32)
    at Function.checkForErrors (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:103346:27)
    at Function.generateFromMetadataSync (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:103325:14)
    at Function.generateFromMetadata (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:103315:29)
    at Object.buildSchema (/Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:103940:61)
    at /Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:99831:41
    at Generator.next (<anonymous>)
    at /Users/sive/Documents/workspace/graphql-file-uploads/dist/index.js:99819:71
    at new Promise (<anonymous>)
    ```
    
   Any help would be greatly appreciated.
