### 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.
aws_client.s3.put_(Bucket=s3_bucket, Key="data.txt", Body=b"69\n420\n")
        response = aws_client.s3.get__attributes(
            Bucket=s3_bucket,
            Key="data.txt",
            ObjectAttributes=["StorageClass", "ETag", "ObjectSize", "ObjectParts", "Checksum"],
        )
        snapshot.match("-attrs", response)
        multipart_key = "test-get-obj-attrs-multipart"
        s3_multipart_upload(bucket=s3_bucket, key=multipart_key, data="upload-part-1" * 5)
        response = aws_client.s3.get__attributes(
            Bucket=s3_bucket,
            Key=multipart_key,
            ObjectAttributes=["StorageClass", "ETag", "ObjectSize", "ObjectParts"],
        )
        snapshot.match("-attrs-multiparts-1-part", response)
        multipart_key = "test-get-obj-attrs-multipart-2"
        s3_multipart_upload(bucket=s3_bucket, key=multipart_key, data="upload-part-1" * 5, parts=2)
        response = aws_client.s3.get__attributes(
            Bucket=s3_bucket,