weechat: update wee-slack

diff --git a/weechat/python/wee-slack b/weechat/python/wee-slack
index f4fcf380e7baff9b84d32ac5c55fd8effd393119..d18ae4166bb170fbcdb621d36d43a065498cf955 160000 (submodule)
--- a/weechat/python/wee-slack
+++ b/weechat/python/wee-slack
@@ -1 +1 @@
-Subproject commit f4fcf380e7baff9b84d32ac5c55fd8effd393119
+Subproject commit d18ae4166bb170fbcdb621d36d43a065498cf955