:art: Update plug [skip ci]

diff --git a/plug b/plug
index 7df6a56d230b0d236d9370d002fd282c74c0de4a..649ce7bb704129dd26f6fd1d3470fc4f60da1451 160000 (submodule)
--- a/plug
+++ b/plug
@@ -1 +1 @@
-Subproject commit 7df6a56d230b0d236d9370d002fd282c74c0de4a
+Subproject commit 649ce7bb704129dd26f6fd1d3470fc4f60da1451