There is an updated pull request by yopito against master on the void-packages repository

https://github.com/yopito/void-packages seafile.703
https://github.com/void-linux/void-packages/pull/15990

[WIP] Seafile: update to 7.0.3
Waiting also for official announcement of 7.0.3 version

A patch file from https://github.com/void-linux/void-packages/pull/15990.patch is attached