probot: Reduce daysUntilClose from 14 to 7
probot: Reduce daysUntilClose from 14 to 7

People usually either respond rather quickly or not at all. So let's
reduce the duration until an issue is closed without feedback a bit.

crate/crate,EvilMcJerkface/crate,EvilMcJerkface/crate,crate/crate,EvilMcJerkface/crate,crate/crate