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

xfce4-cpugraph-plugin: update to 1.2.8.
https://github.com/void-linux/void-packages/pull/46498

Description:
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#### Testing the changes
- I tested the changes in this PR: **YES**
#### New package
- This new package conforms to the [package requirements](https://github.com/void-linux/void-packages/blob/master/CONTRIBUTING.md#package-requirements): **YES**|**NO**
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