Gitlab soft deletes projects for 7 days

It turns out, Gitlab doesn't allow you to delete public repositories immediately. They are soft-deleted (i.e., can be restored) for up to 7 days. This means that when we delete and try to recreate the same repository, our script fails because the name and path are already taken.

We should update the script to create new repositories for each upload. This can be done by modifying the repository name to be based on the tor browser release.