kak: update config

diff --git a/dot-config/kak b/dot-config/kak
index 873c75c6a28e14990ca87373363fe615a08c5e41..8a5966cdd083deb9afcb240970f8ee020ae26e40 160000 (submodule)
--- a/dot-config/kak
+++ b/dot-config/kak
@@ -1 +1 @@
-Subproject commit 873c75c6a28e14990ca87373363fe615a08c5e41
+Subproject commit 8a5966cdd083deb9afcb240970f8ee020ae26e40