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

libvpx: update to 1.13.0
https://github.com/void-linux/void-packages/pull/46327

Description:
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Drop the versioned packages, this just results in forgotten package bumps, as e.g. tox stuff is still on vpx6 -.-

[ci skip]

#### Testing the changes
- I tested the changes in this PR: **YES**|**briefly**|**NO**

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