We'd like to be able to build both Fedora N and N-1 at the same time if
possible. This makes it more generally applicable for this scenario, as
well as for other distros.
Hopefully this makes releases a little better for users.
In particular, this avoids listing old build artifacts in the SHA256SUMS
files when we make new releases, and users can now download them
directly.
Now to make a release you run: `make tag && make release`.
After the first make session ends, you'll have a new tag released
publicly, and then during the second make session, the release target
will notice this new tag, build some assets, and upload them!
This commit adds new make targets for rpm, deb, and pacman packages.
It also adds a phony target that uploads tarballs of the packages,
along with their signed (and unsigned) checksums to the github release
page. Once the current commit is tagged as a release, run `make release`
to build the packages and upload them to github.
