Minor Issue: Delete .tmp folder when builder fails

- When I put a non existent branch in the yaml I get error when trying to build the json&hellip;
    - Error loading commits: Code branch "v0.2.1" not found
    - And the .tmp folder doesn&rsquo;t get deleted

Not a big deal, but that .tmp folder could probably get deleted when the builder fails

Nice error message though &#128516; 