Tomas Janousek 0c11288ea0 ci: Use xmonad master for haskell-ci workflow
Last released xmonad doesn't build with GHC 9.0 and haskell-ci doesn't
let us tweak the test matrix easily. Let's hope the stack.yml workflow
is sufficient to test backward compat.

Related: 2a1a18023a
2021-05-23 22:19:59 +01:00
..
2021-05-14 17:06:22 +01:00
2021-05-04 07:57:38 +02:00