weechat: update wee-slack

diff --git a/weechat/python/wee-slack b/weechat/python/wee-slack
index d427501e988d20b9ff80d55ae18a0ed888d515e4..43212ca00fd17a8f01a368f55bfec7e21913a65b 160000 (submodule)
--- a/weechat/python/wee-slack
+++ b/weechat/python/wee-slack
@@ -1 +1 @@
-Subproject commit d427501e988d20b9ff80d55ae18a0ed888d515e4
+Subproject commit 43212ca00fd17a8f01a368f55bfec7e21913a65b