weechat: update wee-slack

diff --git a/weechat/python/wee-slack b/weechat/python/wee-slack
index 4fac1a9512fdac1268599e13e37e1778e31487ef..601ce1e69e6f1ace2a8d8601e4e4e002af500096 160000 (submodule)
--- a/weechat/python/wee-slack
+++ b/weechat/python/wee-slack
@@ -1 +1 @@
-Subproject commit 4fac1a9512fdac1268599e13e37e1778e31487ef
+Subproject commit 601ce1e69e6f1ace2a8d8601e4e4e002af500096