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

https://github.com/Piraty/void-packages keepassxc-2.6.0
https://github.com/void-linux/void-packages/pull/22764

[NOMERGE] keepassxc: update to 2.6.0-BETA1
~This PR is a preview and will be update to 2.6.0 release if that happens.~

New Release

Don't be surprised by their new icons and theming, https://github.com/keepassxreboot/keepassxc/issues/4838

A patch file from https://github.com/void-linux/void-packages/pull/22764.patch is attached