### 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.
response = aws_client.s3.put_bucket_request_payment(
            Bucket=s3_bucket, RequestPaymentConfiguration={"Payer": "Requester"}
        )
        snapshot.match("put-bucket-request-payment", response)
        assert response["ResponseMetadata"]["HTTPStatusCode"] == 200
        response = aws_client.s3.get_bucket_request_payment(Bucket=s3_bucket)
        snapshot.match("get-bucket-request-payment", response)
        assert "Requester" == response["Payer"]
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(condition=is_old_provider, path="$..Error.BucketName")
    def test_s3_request_payer_exceptions(self, s3_bucket, snapshot, aws_client):
        with 
            aws_client.s3.put_bucket_request_payment(
                Bucket=s3_bucket, RequestPaymentConfiguration={"Payer": "Random"}
            )
        snapshot.match("wrong-payer-type", e.value.response)
        # TODO
        # with 
        #     
        #         
        #     )
        # snap
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        paths=["$..Error.RequestID", "$..Grants..Grantee.DisplayName"]
    )
    def test_bucket_exists(self, s3_bucket, snapshot, aws_client):