There is a new pull request by eljamm against master on the void-packages repository

https://github.com/eljamm/void-packages biber-2.18
https://github.com/void-linux/void-packages/pull/42146

biber: update to 2.18.
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#### Testing the changes
- I tested the changes in this PR: **briefly**

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#### Local build testing
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A patch file from https://github.com/void-linux/void-packages/pull/42146.patch is attached