Updates stowpkg: ac6fb6f Adds st terminal

diff --git a/stowpkg b/stowpkg
index 94b92945b9eb7fc2f45551fda466f6eedfa0e37c..ac6fb6fb1fa872a2f79249b78aea80f5654332ef 160000 (submodule)
--- a/stowpkg
+++ b/stowpkg
@@ -1 +1 @@
-Subproject commit 94b92945b9eb7fc2f45551fda466f6eedfa0e37c
+Subproject commit ac6fb6fb1fa872a2f79249b78aea80f5654332ef