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

os-prober: update to 1.81.
https://github.com/void-linux/void-packages/pull/39886

Description:
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#### Testing the changes
- I tested the changes in this PR: **briefly**, it runs but I don't have any other OSs on my void machine to check if it still detects them.

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-glibc)