use tempfile.gettempdir() as a fallback

[guykisel]

fixes #383

this isn't really the best workaround ever. :(

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[guykisel]

the pre-commit.ci run appears to be failing due to some sort of dependency configuration issue. i think it's unrelated to my change?

          × Preparing metadata (pyproject.toml) did not run successfully.
          │ exit code: 1
          ╰─> [17 lines of output]
              Traceback (most recent call last):
                File "/pc/clone/zvRHoZUtS92lKM5aGZlnvA/py_env-python3/lib/python3.11/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 351, in <module>
                  main()
                File "/pc/clone/zvRHoZUtS92lKM5aGZlnvA/py_env-python3/lib/python3.11/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 333, in main
                  json_out['return_val'] = hook(**hook_input['kwargs'])
                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/pc/clone/zvRHoZUtS92lKM5aGZlnvA/py_env-python3/lib/python3.11/site-packages/pip/_vendor/pep517/in_process/_in_process.py", line 152, in prepare_metadata_for_build_wheel
                  return hook(metadata_directory, config_settings)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/tmp/pip-build-env-fh_0iat7/overlay/lib/python3.11/site-packages/poetry/core/masonry/api.py", line 40, in prepare_metadata_for_build_wheel
                  poetry = Factory().create_poetry(Path(".").resolve(), with_groups=False)
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/tmp/pip-build-env-fh_0iat7/overlay/lib/python3.11/site-packages/poetry/core/factory.py", line 57, in create_poetry
                  raise RuntimeError("The Poetry configuration is invalid:\n" + message)
              RuntimeError: The Poetry configuration is invalid:
                - [extras.pipfile_deprecated_finder.2] 'pip-shims<=0.3.4' does not match '^[a-zA-Z-_.0-9]+$'
                - 

[hukkin]

Closing in favor of #409