[v12.x backport] module: fix legacy `node` specifier resolution to resolve `"main"` field
PR-URL: https://github.com/nodejs/node/pull/38979 Fixes: https://github.com/nodejs/node/issues/32103 Fixes: https://github.com/nodejs/node/issues/38739 Reviewed-By: Bradley Farias bradley.meck@gmail.com Reviewed-By: Guy Bedford guybedford@gmail.com