errors,tools: alphabetize-errors lint rule

To make sure errors in lib/internal/errors.js (are defined via `E`)
will stay in alphabetical order going forward.

PR-URL: https://github.com/nodejs/node/pull/15083


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>