### 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())
        response = aws_client.s3.put_(Bucket=s3_bucket, Key="Ā0Ä", Body=b"abc123")
        assert response["ResponseMetadata"]["HTTPStatusCode"] == 200
        snapshot.match("put-", response)
        response = aws_client.s3.get_(Bucket=s3_bucket, Key="Ā0Ä")
        snapshot.match("get-", response)
        assert response["Body"].read() == b"abc123"
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_asf_provider,
        paths=[
            "$..HTTPHeaders.connection",
            # TO
            "$..HTTPHeaders.content-length",  # 58
            "$..HTTPHeaders.content-type",  # ap
        ],
    )  # fo
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider,
        paths=[
            "$..HTTPHeaders.access-control-allow-origin",
            "$..HTTPHeaders.access-control-allow-headers",
            "$..HTTPHeaders.access-control-allow-methods",
            "$..HTTPHeaders.access-control-expose-headers",
            "$..HTTPHeaders.connection",
            "$..HTTPHeaders.content-md5",
            "$..HTTPHeaders.x-amz-version-id",
            "$..HTTPHeaders.x-amzn-requestid",