common: update for new suppression

Makes check-valgrind pass with glib 2.46

diff --git a/common b/common
index 9aed1d7..6623591 160000 (submodule)
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit 9aed1d7a80a38b76f9441ecf181942df99f09c38
+Subproject commit 66235917b47e6f933f8bd32376662a54f17eb609