sort: Support *.wasm

[oech3]

Using https://github.com/uutils/coreutils/releases/download/latest-commit/coreutils-wasm32-wasip1.tar.gz .

 wasmtime coreutils.wasm
coreutils 0.7.0 (multi-call binary)

Usage: coreutils [function [arguments...]]
       coreutils --list

Options:
      --list    lists all defined functions, one per row

Currently defined functions:

    arch, b2sum, base32, base64, basename, basenc, cksum, cut, date,
    dircolors, dirname, echo, expand, factor, false, fmt, fold, join, link,
    md5sum, nl, numfmt, od, paste, pr, printenv, printf, ptx, pwd, seq,
    sha1sum, sha224sum, sha256sum, sha384sum, sha512sum, shred, shuf, sleep,
    sum, tee, true, truncate, uname, unexpand, uniq, unlink, wc, yes

maybe, needed to avoid libc import?

[oech3]

#11568