Packaging of JS artifact on windows: Path too long

[MementoRC]

Bug:

While going through the packaging phase of a recipe on windows I see:

Packaged license file/s.
Traceback (most recent call last):
  File "D:\a\1\s\.ci_support\build_all.py", line 261, in <module>
    build_all(os.path.join(root_dir, "recipes"), args.arch)
  File "D:\a\1\s\.ci_support\build_all.py", line 151, in build_all
    build_folders(recipes_dir, folders, arch, channel_urls)
  File "D:\a\1\s\.ci_support\build_all.py", line 207, in build_folders
    conda_build.api.build([recipe], config=get_config(arch, channel_urls))
  File "C:\Miniforge\lib\site-packages\conda_build\api.py", line 209, in build
    return build_tree(
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 3712, in build_tree
    packages_from_this = build(
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 2765, in build
    newly_built_packages = bundlers[pkg_type](
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 1889, in bundle_conda
    output["checksums"] = create_info_files(
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 1417, in create_info_files
    files_with_prefix = get_files_with_prefix(m, replacements, files, prefix)
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 1056, in get_files_with_prefix
    pfx_matches = have_regex_files(
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 542, in have_regex_files
    match_records_rg = regex_files_rg(
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 268, in regex_files_rg
    raise e
  File "C:\Miniforge\lib\site-packages\conda_build\build.py", line 260, in regex_files_rg
    subprocess.check_output(args, shell=False).rstrip(b"\n").split(b"\n")
  File "C:\Miniforge\lib\subprocess.py", line 421, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "C:\Miniforge\lib\subprocess.py", line 503, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Miniforge\lib\subprocess.py", line 971, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Miniforge\lib\subprocess.py", line 1456, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 206] The filename or extension is too long

https://dev.azure.com/conda-forge/feedstock-builds/_build/results?buildId=995507&view=logs&j=240f1fee-52bc-5498-a14a-8361bde76ba0&t=7c0f8eae-6d6f-51bf-636f-73a1a7fb1bc4&l=2158