### 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 
        response = .put(presigned_url, verify=False, data=b"123456")
        assert response.status_code == 403
        # asse
        # beca
        response = .put(
            presigned_url,
            data=b"123456",
            verify=False,
            headers={"Content-MD5": "4QrcOUm6Wau+VuBX8g+IPg=="},
        )
        assert response.status_code == 200
        # asse
        # it w
        response = .put(
            presigned_url,
            data=b"123456",
            verify=False,
            headers={
                "Content-MD5": "4QrcOUm6Wau+VuBX8g+IPg==",
                "x-amz-server-side-encryption": "AES256",
            },
        )
        assert response.status_code == 200
    @pytest.mark.aws_validated
    @pytest.mark.xfail(
        condition=is_old_provider(),
        reason="No",
    )
    def test_pre_signed_url_forward_slash_bucket(