kak: update config

diff --git a/dot-config/kak b/dot-config/kak
index 27a6285cc0740cdc93a85ed9246565b66a0c17d6..873c75c6a28e14990ca87373363fe615a08c5e41 160000 (submodule)
--- a/dot-config/kak
+++ b/dot-config/kak
@@ -1 +1 @@
-Subproject commit 27a6285cc0740cdc93a85ed9246565b66a0c17d6
+Subproject commit 873c75c6a28e14990ca87373363fe615a08c5e41