This PR fixes an issue when the sha begins with `0` and causes [an error](https://vercel.com/vercel/vercel/EP7fVcXKsoodzWRy3fwG8AoeQcs6) when looking up the tarball:
> Error: ENOENT: no such file or directory,
> copyfile '/vercel/path0/packages/build-utils/vercel-build-utils-v5.4.2-0251253.tgz'
> -> '/vercel/path0/public/tarballs/@vercel/build-utils.tgz'
The fix is to no longer rely on the exact tarball name because we can't guarantee the name from `yarn pack` and instead rely on a pattern for the tarball name.
This removes the reliance on raw github hosting and instead relies on the Vercel deployment hosting the logo images.
Since we already have static files in each deployment (tarballs), it makes sense to start adding static images too.