doc: deprecate process.umask() with no arguments

This commit introduces a documentation deprecation for calling
process.umask() with no arguments.

PR-URL: https://github.com/nodejs/node/pull/32499
Fixes: https://github.com/nodejs/node/issues/32321


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>