There is an updated pull request by mhmdanas against master on the void-packages repository

https://github.com/mhmdanas/void-packages libwacom-2.5.0
https://github.com/void-linux/void-packages/pull/41569

libwacom: update to 2.5.0, adopt. 
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#### Testing the changes
- I tested the changes in this PR: **briefly** (tested with my Wacom Intuos Pro)

I checked locally and the `kcm-wacomtablet` test failures are present without this PR's changes, so it's an unrelated issue.

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A patch file from https://github.com/void-linux/void-packages/pull/41569.patch is attached