### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Using localstack S3 with the Amazon AWSSDK.S3 NuGet v3.7.104.11 in a dotnet application.

Triggering a multipart upload against an instance of the localstack:latest image produces an error.

Full stack trace

`"Exception in multipart upload. Aborting.","RenderedMessage":"Exception in multipart upload. Aborting.","Exception":"Amazon.S3.AmazonS3Exception: exception while calling s3.UploadPart: invalid literal for int() with base 16: b' Agency</SourceName>\' ---> Amazon.Runtime.Internal.HttpErrorResponseException: Exception of type 'Amazon.Runtime.Internal.HttpErrorResponseException' was thrown.   at Amazon.Runtime.HttpWebRequestMessage.GetResponseAsync(CancellationToken cancellationToken)   at Amazon.Runtime.Internal.HttpHandler`1.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.RedirectHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.Unmarshaller.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.S3.Internal.AmazonS3ResponseHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.ErrorHandler.InvokeAsync[T](IExecutionContext executionContext)   --- End of inner exception stack trace ---   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleExceptionStream(IRequestContext requestContext, IWebResponseData httpErrorResponse, HttpErrorResponseException exception, Stream responseStream)   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleExceptionAsync(IExecutionContext executionContext, HttpErrorResponseException exception)   at Amazon.Runtime.Internal.ExceptionHandler`1.HandleAsync(IExecutionContext executionContext, Exception exception)   at Amazon.Runtime.Internal.ErrorHandler.ProcessExceptionAsync(IExecutionContext executionContext, Exception exception)   at Amazon.Runtime.Internal.ErrorHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.CallbackHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.Signer.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.EndpointDiscoveryHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.EndpointDiscoveryHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.CredentialsRetriever.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.RetryHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.RetryHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.CallbackHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.CallbackHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.S3.Internal.AmazonS3ExceptionHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.ErrorCallbackHandler.InvokeAsync[T](IExecutionContext executionContext)   at Amazon.Runtime.Internal.MetricsHandler.InvokeAsync[T](IExecutionContext executionContext)`

### Expected Behavior

The upload completes without exception.

Pinning the version to localstack:2.2.0 resolves the issue.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    docker run localstack/localstack

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

    Custom dotnet application using the AWSSDK.S3 NuGet v3.7.104.11


### Environment

```markdown
- OS: Windows
- LocalStack: localstack/localstack:latest (digest 5614f89737075ffe9f1d473053d87284931fb01b36b76cb7d208950b8ca1536b)
```


### Anything else?

_No response_
headers = {
            "Host": "10.0.1.19:4572",
            "User-Agent": "curl/7.51.0",
            "Accept": "*/*",
            "Content-Length": "992",
            "Expect": "100-continue",
            "Content-Type": "multipart/form-data; boundary=------------------------3c48c744237517ac",
        }
        data1 = (
            b'--------------------------3c48c744237517ac\r\nContent-Disposition: form-data; name="key"\r\n\r\n'
            b"uploads/20170826T181315.679087009Z/upload/${filename}\r\n--------------------------3c48c744237517ac"
            b'\r\nContent-Disposition: form-data; name="AWSAccessKeyId"\r\n\r\nWHAT\r\n--------------------------'
            b'3c48c744237517ac\r\nContent-Disposition: form-data; name="policy"\r\n\r\nNO\r\n--------------------'
            b'------3c48c744237517ac\r\nContent-Disposition: form-data; name="signature"\r\n\r\nYUP\r\n----------'
            b'----------------3c48c744237517ac\r\nContent-Disposition: form-data; name="acl"\r\n\r\nprivate\r\n--'
            b'------------------------3c48c744237517ac\r\nContent-Disposition: form-data; name="success_action_re'
            b'direct"\r\n\r\nhttp://127.0.0.1:5000/\r\n--------------------------3c48c744237517ac\r\nContent-Disp'
            b'osition: form-data; name="file"; filename="pixel.png"\r\nContent-Type: application/octet-stream\r\n'
            b"\r\n\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x06\x00\x00\x00\x1f\x15"