Fix params_test on Windows.

[ScottTodd]

Fix was similar to iree-org/iree@11d2259

Once a temporary file is opened on Windows, it can't be reopened unless some extra conditions are met. From https://docs.python.org/3/library/tempfile.html:

Opening the temporary file again by its name while it is still open works as follows:

• On POSIX the file can always be opened again.
• On Windows, make sure that at least one of the following conditions are fulfilled:
  • delete is false
  • additional open shares delete access (e.g. by calling os.open() with the flag O_TEMPORARY)
  • delete is true but delete_on_close is false. Note, that in this case the additional opens that do not share delete access (e.g. created via builtin open()) must be closed before exiting the context manager, else the os.unlink() call on context manager exit will fail with a PermissionError.

We were setting delete=False, but I still saw these errors:

__________________________________ ParamsTest.testCreateArchive ___________________________________

self = <params_test.ParamsTest testMethod=testCreateArchive>

    def testCreateArchive(self):
        with tempfile.NamedTemporaryFile("wb", delete=False, suffix=".irpa") as f:
            file_path = Path(f.name)
            try:
                m = SimpleParamsModule()
>               save_module_parameters(file_path, m)

tests\aot\params_test.py:43:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ shark_turbine\aot\params.py:136: in save_module_parameters
    builder.save(file_path)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <shark_turbine.aot.params.ParameterArchiveBuilder object at 0x00000216279F0A50>
file_path = WindowsPath('C:/Users/Scott/AppData/Local/Temp/tmpj0_157nn.irpa')

    def save(self, file_path: Union[str, Path]):
        """Saves the archive."""
>       self._index.create_archive_file(str(file_path))
E       RuntimeError: Error building parameter archive: D:\a\iree\iree\c\runtime\src\iree\base\internal\file_io.c:381: UNKNOWN; failed to open file 'C:\Users\Scott\AppData\Local\Temp\tmpj0_157nn.irpa'

shark_turbine\aot\params.py:261: RuntimeError