Chore: Do not try to add schema to zip files

[iLLiCiTiT]

Changelog Description

Do not add schema folder to zip file. This fixes issue cause by #5355 .

Additional info

Schema folder was moved inside openpype codebase.

Traceback

Traceback (most recent call last):
  File "C:\Users\qam\code\OpenPype\igniter\install_thread.py", line 166, in run
    local_openpype = bs.create_version_from_live_code()
  File "C:\Users\qam\code\OpenPype\igniter\bootstrap_repos.py", line 697, in create_version_from_live_code
    self._create_openpype_zip(temp_zip, repo_dir)
  File "C:\Users\qam\code\OpenPype\igniter\bootstrap_repos.py", line 867, in _create_openpype_zip
    sha256sum(sanitize_long_path(file.as_posix())),
  File "C:\Users\qam\code\OpenPype\igniter\bootstrap_repos.py", line 74, in sha256sum
    with open(filename, 'rb', buffering=0) as f:
FileNotFoundError: [Errno 2] No such file or directory: '\\\\?\\C:\\Users\\qam\\code\\OpenPype\\schema'

Testing notes:

1. Run create zip script
2. It should not fail