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

picom: update to 12.3.
https://github.com/void-linux/void-packages/pull/52638

Description:
This *should* be the full changeset for that update, but I'm doing some extended testing since that update has been a bit chaotic (3rd patch release in two weeks), also it's not a pressing package to update.

#### Testing the changes
- I tested the changes in this PR: **YES**

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