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

imath: update to 3.1.11.
https://github.com/void-linux/void-packages/pull/49153

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

@sgn just noticed now the added patch, is it okay to remove it ? `kio-extra` doesn't seem to depend at ,least directly ,on `imath`.