Instead of caching node_modules, cache node_modules.tar.szt

Then wrap your job in a untar/tar:

    tar --use-compress-program zstd -xf node_modules.tar.zst || true
    YOUR NORMAL JOB
    tar --use-compress-program zstd -cf node_modules.tar.zst node_modules

(and you can delete things you don't need if you want)