Update requirements.txt

[sstasik645]

Adding support for legacy Linux distributions

[sstasik645]

Hi,

I got the following error while running the following sync command:
docker run -e "SYNCARGS=--update-extension --extension-name $($extension)" -v ${OUTPUT_FOLDER}:/artifacts -it eitan77/vscsync:1.0.26

Added the missing library fixes the following exception:

Status: Downloaded newer image for lolinternet/vscsync:1.0.26
Traceback (most recent call last):
  File "/opt/vscoffline/sync.py", line 18, in <module>
    from distutils.dir_util import create_tree
ModuleNotFoundError: No module named 'distutils'

[pappasjfed]

This fixes #72

[pappasjfed]

Looks like same issue on vscgallery.

https://stackoverflow.com/questions/77247893/modulenotfounderror-no-module-named-distutils-in-python-3-12

Python 3.12, which removed distutils after it being deprecated since Python 3.10. See PEP 632 Deprecate distutils module and gh-92584 for more details about its removal.

If you want to use that distribution, you'll need to either

install setuptools, which now also provides distutils,