weechat: update wee-slack

diff --git a/weechat/python/wee-slack b/weechat/python/wee-slack
index f458097ff53e6e34bf6b47f62687c7ee55ed95a4..f1d6fc7e5bd64e48ddd9a9aca1cdc985dfc2265c 160000 (submodule)
--- a/weechat/python/wee-slack
+++ b/weechat/python/wee-slack
@@ -1 +1 @@
-Subproject commit f458097ff53e6e34bf6b47f62687c7ee55ed95a4
+Subproject commit f1d6fc7e5bd64e48ddd9a9aca1cdc985dfc2265c