### 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,
        aws_client,
    ):
        snapshot.add_transformer(snapshot.transform.s3_api())
        handler_file = os.path.join(
            os.path.dirname(__file__), "../awslambda/functions/lambda_s3_integration.js"
        )
        temp_folder = create_tmp_folder_lambda(
            handler_file,
            run_command="npm i @aws-sdk/util-endpoints @aws-sdk/client-s3 @aws-sdk/s3-request-presigner @aws-sdk/middleware-endpoint",
        )
        function_name = f"func-integration-{short_uid()}"
        create_lambda_function(
            func_name=function_name,
            zip_file=testutil.create_zip_file(temp_folder, get_content=True),
            runtime=LAMBDA_RUNTIME_NODEJS14X,
            handler="lambda_s3_integration.handler",
            role=lambda_su_role,
        )
        s3_create_bucket(Bucket=function_name)
        response = aws_client.awslambda.invoke(FunctionName=function_name)
        presigned_url = response["Payload"].read()
        presigned_url = json.loads(to_str(presigned_url))["body"].strip('"')
        response = .put(presigned_url, verify=False)
        assert 200 == response.status_code
        response = aws_client.s3.head_(Bucket=function_name, Key="key.png")
        snapshot.match("head_", response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(condition=is_old_provider, path="$..Error.BucketName")
    def test_s3_uppercase_bucket_name(self, s3_create_bucket, snapshot, aws_client):