Renovate the release github action

[rapiz1]

We locked rustc to 1.71 when releasing because some mips targets are downgraded after 1.71. By doing that we locked the version for all platforms, which doesn't make much sense.

Also, we're using cross 0.2.5, which is a pretty old version to build for some platforms because of the lack of openssl in the newer cross version. I've doubted if such openssl really works for those platforms and more sensible option would be upgrading cross to latest version, and use rustls for these platforms.