stache 2.3.4

Only display out-of-date packages.

8 Reverse deps	Accepted versions
clash-shake	-any
clashilator	==2.3.*
mmark-cli	>=2 && <3
project-forge	-any
servant-stache	-any
shakebook	-any
specup	>=2.3.3 && <2.4
test-sandbox	-any