### 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())
        bucket_name = f"bucket-{short_uid()}"
        test_1st_key = "aws/s3/testkey1.txt"
        test_2nd_key = "aws/s3/testkey2.txt"
        body = "Lorem ipsum dolor sit amet, ... " * 30
        s3_create_bucket(Bucket=bucket_name)
        aws_client.s3.put_bucket_versioning(
            Bucket=bucket_name,
            VersioningConfiguration={"Status": "Enabled"},
        )
        rs = aws_client.s3.get_bucket_versioning(Bucket=bucket_name)
        snapshot.match("get_bucket_versioning", rs)
        # put 
        rs = aws_client.s3.put_(Bucket=bucket_name, Key=test_1st_key, Body=body)
        aws_client.s3.put_(Bucket=bucket_name, Key=test_2nd_key, Body=body)
        version_id = rs["VersionId"]
        # dele
        rs = aws_client.s3.delete_s(
            Bucket=bucket_name,
            Delete={"Objects": [{"Key": test_1st_key, "VersionId": version_id}]},