### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

The Complete Multipart Upload operation generates the **InternalError** error for non-existing uploads.

### Expected Behavior

The Complete Multipart Upload operation generates the **NoSuchUpload** error for non-existing uploads.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

    docker run -it --rm -p 4566:4566 localstack/localstack

    aws s3api create-bucket --bucket test --endpoint-url http://localhost:4566 --create-bucket-configuration LocationConstraint=us-west-2

    aws s3api complete-multipart-upload --bucket test --endpoint-url http://localhost:4566 --key test --upload-id test

### Environment

```markdown
- OS: Windows 11
- LocalStack: latest
```


### Anything else?

The Abort Multipart Upload operation works correctly in LocalStack.

The official documentation: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html
Amazon S3 throws the correct **NoSuchUpload** error for both Abort and Complete operations.
for deleted in result.get("Deleted"):
            if deleted_objects.get(deleted["Key"]):
                self._notify(context, deleted_objects.get(deleted["Key"]))
        if not quiet:
            return result
        
        
        result.pop("Deleted", "")
        return result
    @handler("CreateMultipartUpload", expand=False)
    def create_multipart_upload(
        self,
        context: RequestContext,
        request: CreateMultipartUploadRequest,
    ) -> CreateMultipartUploadOutput:
        if not config.S3_SKIP_KMS_KEY_VALIDATION and (sse_kms_key_id := request.get("SSEKMSKeyId")):
            moto_backend = get_moto_s3_backend(context)
            bucket = get_bucket_from_moto(moto_backend, bucket=request["Bucket"])
            validate_kms_key_id(sse_kms_key_id, bucket)
        if (
            storage_class := request.get("StorageClass")
        ) and storage_class not in s3_constants.VALID_STORAGE_CLASSES:
            raise InvalidStorageClass(
                "The storage class you specified is not valid",
                StorageClassRequested=storage_class,
            )
        response: CreateMultipartUploadOutput = call_moto(context)
        return response
    @handler("CompleteMultipartUpload", expand=False)
    def complete_multipart_upload(