Upload Source Tarball in Release

[michaelquigley]

Upload a source tarball as part of the release process, rather than relying on GitHub's automatically generated tarballs. The generated tarballs can cause issues if git attributes change (or other potentially undiscovered shifts), which can break Homebrew releases (with checksum mismatches).

Also update the Homebrew release process to use the uploaded tarball instead of the generated GitHub tarball.

[qrkourier]

Michael, I'd like to steal this issue and include it in a batch of release artifact changes I'm planning for zrok and ziti to adopt industry-standard attestations for the release binaries and container images.

[michaelquigley]

What is your ETA on it? I'd like this to be completed in the next ~week, so that it is implemented before the first production drop of 1.0.0.