### 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.
snapshot.add_transformer(snapshot.transform.s3_api())
        key = "my-key"
        # ht
        tranfer_config = TransferConfig(multipart_threshold=5 * KB, multipart_chunksize=1 * KB)
        file = tmpdir / "test-file.bin"
        data = b"1" * (6 * KB)  # cr
        file.write(data=data, mode="w")
        aws_client.s3.upload_file(
            Bucket=s3_bucket, Key=key, Filename=str(file.realpath()), Config=tranfer_config
        )
        obj = aws_client.s3.get_(Bucket=s3_bucket, Key=key)
        assert obj["Body"].read() == data, f"body did not contain expected data {obj}"
        snapshot.match("get_", obj)
    @pytest.mark.aws_validated
    @pytest.mark.parametrize("delimiter", ["/", "%2F"])
    def test_list_s_with_prefix(self, s3_create_bucket, delimiter, snapshot, aws_client):