There's a closed pull request on the void-packages repository

refind: fix python_version
https://github.com/void-linux/void-packages/pull/38436

Description:
for the [entire git history on sourceforge](https://sourceforge.net/p/refind/code/ci/0d46f46ed7a2d453c9320469f211c5348120a1cd/log/?path=/refind-mkdefault), this has been a python3 script, not python2

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#### Testing the changes
- I tested the changes in this PR: **briefly**