buffer: alias UInt ➡️ Uint in buffer methods

It’s *so* hard to remember that it’s `UintXArray` but not
`(write|read)UintX`. Let’s fix that by just providing aliases. 😊

PR-URL: https://github.com/nodejs/node/pull/34729


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>