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

https://github.com/yopito/void-packages postgis-2.5.3
https://github.com/void-linux/void-packages/pull/14176

postgis: update to 2.5.3, ignore alpha releases


A patch file from https://github.com/void-linux/void-packages/pull/14176.patch is attached