### 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()}"
        _key = f"key-{short_uid()}"
        body = "body data"
        s3_create_bucket(Bucket=bucket_name, ACL="public-read")
        aws_client.s3.put_(
            Bucket=bucket_name,
            Key=_key,
            Body=body,
        )
        aws_client.s3.put__acl(Bucket=bucket_name, Key=_key, ACL="public-read")
        s3_anon_client = _anon_client("s3")
        response = s3_anon_client.get_(Bucket=bucket_name, Key=_key)
        snapshot.match("get_", response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider, paths=["$..ContentLanguage", "$..VersionId", "$..AcceptRanges"]
    )
    def test_put_with_multiple_keys(self, s3_create_bucket, snapshot, aws_client):
        snapshot.add_transformer(snapshot.transform.s3_api())
        bucket = f"bucket-{short_uid()}"
        key_by_path = "aws/key1/key2/key3"
        s3_create_bucket(Bucket=bucket)
        aws_client.s3.put_(Body=b"test", Bucket=bucket, Key=key_by_path)
        result = aws_client.s3.get_(Bucket=bucket, Key=key_by_path)
        snapshot.match("get_", result)
    @pytest.mark.aws_validated
    def test_delete_bucket_lifecycle_configuration(self, s3_bucket, snapshot, aws_client):