New review comment by st3r4g on void-packages repository

https://github.com/void-linux/void-packages/pull/31549#discussion_r666851308

Comment:
I think there's no reason to make it configurable. It's the same in [upstream's systemd unit](https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/master/src/daemon/systemd/system/pipewire.service.in) (`%t` expands to /run I guess)