Left over intermediate artefacts

## Overview
I ran: `semsql make doid.db`, and these files remained afterwards:
1. `.template.db`: Appears the CWD (current working directory) from where I'm running the command. It _might_ be that this is because one of the commands failed, but I'm not sure.
2. `.template.db.tmp` (_edit: 2023/04/27: Also seeing these files; not sure which SemSQL version this started appearing in though._)
3. `doid-relation-graph.tsv.gz`: Appears in the directory where my `.db` file is created, and the`.owl` file used to create that file is located.

## Replicating this issue
1. Have semsql
2. Download and unzip [doid.owl.zip](https://github.com/INCATools/semantic-sql/files/9301655/doid.owl.zip)
4. Run `semsql make doid.db` from unzipped directory, or use the dockerized version.

Start by running `semsql make doid.db` with the linked `doid.owl` input and record when `.template.db`, `.template.db.tmp`, and `doid-relation-graph.tsv.gz` are created. Trace the command path responsible for each artefact and establish which files are required after a successful build. Done means unintended intermediate files are removed or kept out of the user's working directories, with the behavior covered by the project's available tests.

Written by the indexing model from the issue text.