CLI: Upgrade commander from 7.2 to 12.1.0

[Krinkle]

1. ✅ Verify package publication metadata.
2. ✅ Review package diffs.
3. ✅ Repeat the above two steps for any changed or added indirect dependencies: None.
4. ✅ What is this package used for: CLI options parsing.
5. ✅ Test relevant use of package (how, if manually, or covered by CI): Covered by CI.

Verify publication to npm

Previously at #1564:

$ npm info commander@7.1.0

commander@7.1.0 | MIT | deps: none

maintainers:
- zhiyelee <zhiyelee@gmail.com>
- somekittens <rkoutnik@gmail.com>
- tjholowaychuk <tj@vision-media.ca>
- vanesyan <romain.vanesyan@gmail.com>
- shadowspawn <npm_j@ruru.gen.nz>
- abetomo <abe@enzou.tokyo>

published 3 weeks ago by abetomo <abe@enzou.tokyo>

Now:

$ npm info commander@12.1.0

commander@12.1.0 | MIT | deps: none

maintainers:
- somekittens <rkoutnik@gmail.com>
- tjholowaychuk <tj@vision-media.ca>
- shadowspawn <npm_j@ruru.gen.nz>
- abetomo <abe@enzou.tokyo>

published 2 months ago by abetomo <abe@enzou.tokyo>

• ✅ Published by the same account as a previous release: Yes.
• ✅ New maintainer(s): (none).
• ✅ Added dependencies: (none).
• ✅ Changed dependencies: (none).

Review package diffs

Review package diffs, use npm diff ---diff commander@7.2.0 --diff commander@12.1.0 --color=always or https://diff.intrinsic.com.

• Raise Node.js requirement from 10 to 18.
• Deprecation and removal of methods we don't use.
• Changes to types we don't use.
• Moved most internal code from index.js to lib/command.js.
• Change export of program via require() CommonJS from default to named export.

✅ LGTM.

See also changelog at https://github.com/tj/commander.js/blob/v12.1.0/CHANGELOG.md