[BUG] Relenv OneDir Salt fails to start

[twangboy]

Description
On some machines, PythonNet fails to load. This is presented in Salt by unzipping a Relenv OneDir build and then running .\salt-call.exe --version. You will see the following stacktrace:

PS C:\Temp\salt> .\salt-call.exe --version
Traceback (most recent call last):
  File "C:\Temp\salt\lib\runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Temp\salt\lib\runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "C:\Temp\salt\salt-call.exe\__main__.py", line 7, in <module>
  File "C:\Temp\salt\lib\site-packages\salt\scripts.py", line 438, in salt_call
    import salt.cli.call
  File "C:\Temp\salt\lib\site-packages\salt\cli\call.py", line 3, in <module>
    import salt.cli.caller
  File "C:\Temp\salt\lib\site-packages\salt\cli\caller.py", line 12, in <module>
    import salt.channel.client
  File "C:\Temp\salt\lib\site-packages\salt\channel\client.py", line 13, in <module>
    import salt.crypt
  File "C:\Temp\salt\lib\site-packages\salt\crypt.py", line 26, in <module>
    import salt.payload
  File "C:\Temp\salt\lib\site-packages\salt\payload.py", line 12, in <module>
    import salt.loader.context
  File "C:\Temp\salt\lib\site-packages\salt\loader\__init__.py", line 15, in <module>
    import salt.config
  File "C:\Temp\salt\lib\site-packages\salt\config\__init__.py", line 22, in <module>
    import salt.utils.network
  File "C:\Temp\salt\lib\site-packages\salt\utils\network.py", line 32, in <module>
    import salt.utils.win_network
  File "C:\Temp\salt\lib\site-packages\salt\utils\win_network.py", line 56, in <module>
    import clr
  File "C:\Temp\salt\lib\site-packages\clr.py", line 6, in <module>
    load()
  File "C:\Temp\salt\lib\site-packages\pythonnet\__init__.py", line 143, in load
    if func(b"") != 0:
  File "C:\Temp\salt\lib\site-packages\clr_loader\types.py", line 64, in __call__
    return self._callable(ffi.cast("void*", buf_arr), len(buf_arr))
RuntimeError: cannot call null pointer pointer from cdata 'int(*)(void *, int)'

You can also see a simpler stack trace by starting the Python from the OneDir build and trying to import clr:

PS C:\Temp\salt> .\Scripts\python.exe
Python 3.10.11 (heads/main:408ea86, May  5 2023, 02:40:17) [MSC v.1934 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import clr
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Temp\salt\lib\site-packages\clr.py", line 6, in <module>
    load()
  File "C:\Temp\salt\lib\site-packages\pythonnet\__init__.py", line 143, in load
    if func(b"") != 0:
  File "C:\Temp\salt\lib\site-packages\clr_loader\types.py", line 64, in __call__
    return self._callable(ffi.cast("void*", buf_arr), len(buf_arr))
RuntimeError: cannot call null pointer pointer from cdata 'int(*)(void *, int)'