Avoid global umask for setting file mode.
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2025-05-06T12:42:41Z
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This PR updates the method for setting the permissions on `cache_path` after calling `shutil.move`. The call to `shutil.move` may not preserve permissions if the source and destination are on different filesystems. Reading and resetting umask can cause race conditions, so directly read what permissions were set for the `temp_file` instead.

This fixes https://github.com/huggingface/datasets/issues/7536.