tools: pull xcode_emulation.py from node-gyp

PR-URL: https://github.com/nodejs/node/pull/30272
Fixes: https://github.com/nodejs/node/issues/30129


Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Shelley Vohr <codebytere@gmail.com>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>