esm: fix esm load bug

Fixes: https://github.com/nodejs/node/issues/25482

PR-URL: https://github.com/nodejs/node/pull/25491


Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>