### 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.
# remo
        if signature_version == "s3":
            presigned_request["fields"].pop("AWSAccessKeyId")
        else:
            presigned_request["fields"].pop("x-amz-algorithm")
            presigned_request["fields"].pop("x-amz-credential")
        response = .post(
            presigned_request["url"],
            data=presigned_request["fields"],
            files={"file": "file content"},
            verify=False,
        )
        exception = xmltodict.parse(response.content)
        exception["StatusCode"] = response.status_code
        snapshot.match("exception-missing-fields", exception)
        # pop 
        presigned_request["fields"] = {
            k: v for k, v in presigned_request["fields"].items() if k in ("key", "policy")
        }
        response = .post(
            presigned_request["url"],
            data=presigned_request["fields"],
            files={"file": "file content"},
            verify=False,
        )
        exception = xmltodict.parse(response.content)
        exception["StatusCode"] = response.status_code
        snapshot.match("exception-no-sig-related-fields", exception)
    @pytest.mark.aws_validated
    def test_delete_has_empty_content_length_header(self, s3_bucket, aws_client):