API returns 500 "General Error" when trying to upload an image that is larger than the `chunk_size`

I noticed, that the API returned a "General Error" when I tried to upload an image that is larger than 20 MB.
After some research I found a matching issue in the cloudinary_android-Repo: https://github.com/cloudinary/cloudinary_android/issues/148.
After reading the docs (https://cloudinary.com/documentation/upload_images#chunked_asset_upload), I set the `chunk_size` to a value that is larger than 20 MB (e. g. 30000000) when calling the upload-function.
That fixed my problem. However, the [Chunked asset upload](https://cloudinary.com/documentation/upload_images#chunked_asset_upload) feature doesn't seem to work.

## Issue Type (Can be multiple)
- [x] Behaviour - Functions aren’t working as expected (such as generate URL)
- [x] Documentation - Inconsistency between the docs and behaviour

## Steps to reproduce
Try to upload a file larger than 20 MB (or the \Cloudinary\Configuration\ApiConfig::DEFAULT_CHUNK_SIZE respectively).

## Error screenshots or Stack Trace (if applicable)
Message: "Cloudinary\Api\Exception\GeneralError: General Error in .../vendor/cloudinary/cloudinary_php/src/Api/BaseApiClient.php:417
Stack trace:
#0 .../vendor/cloudinary/cloudinary_php/src/Api/BaseApiClient.php(337): Cloudinary\Api\BaseApiClient->handleApiResponse(Object(GuzzleHttp\Psr7\Response))
#1 .../vendor/guzzlehttp/promises/src/Promise.php(209): Cloudinary\Api\BaseApiClient->Cloudinary\Api\{closure}(Object(GuzzleHttp\Psr7\Response))
#2 .../vendor/guzzlehttp/promises/src/Promise.php(158): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), NULL)
#3 .../vendor/guzzlehttp/promises/src/TaskQueue.php(52): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}()
#4 .../vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php(159): GuzzleHttp\Promise\TaskQueue->run()
#5 .../vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php(185): GuzzleHttp\Handler\CurlMultiHandler->tick()
#6 .../vendor/guzzlehttp/promises/src/Promise.php(251): GuzzleHttp\Handler\CurlMultiHandler->execute(true)
#7 .../vendor/guzzlehttp/promises/src/Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn()
#8 .../vendor/guzzlehttp/promises/src/Promise.php(272): GuzzleHttp\Promise\Promise->waitIfPending()
#9 .../vendor/guzzlehttp/promises/src/Promise.php(229): GuzzleHttp\Promise\Promise->invokeWaitList()
#10 .../vendor/guzzlehttp/promises/src/Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending()
#11 .../vendor/cloudinary/cloudinary_php/src/Api/ApiClient.php(348): GuzzleHttp\Promise\Promise->wait()
#12 .../vendor/cloudinary/cloudinary_php/src/Api/ApiClient.php(282): Cloudinary\Api\ApiClient->postLargeFileAsync('image/upload', Object(GuzzleHttp\Psr7\Stream), Array, Array)
#13 .../vendor/cloudinary/cloudinary_php/src/Api/Upload/UploadTrait.php(138): Cloudinary\Api\ApiClient->postFileAsync('image/upload', 'data:image/jpeg...', Array, Array)
#14 .../vendor/cloudinary/cloudinary_php/src/Api/Upload/UploadTrait.php(162): Cloudinary\Api\Upload\UploadApi->uploadAsync('data:image/jpeg...', Array)
#15 ...: Cloudinary\Api\Upload\UploadApi->upload('data:image/jpeg...', Array)

## Operating System
- [x] Linux

## Environment and Frameworks (fill in the version numbers)

- PHP Cloudinary SDK version - 2.14.0
- PHP Version - 8.2.25
- Framework (Laravel, Symphony, etc) - 6.2.10