bump gossamer commit

diff --git a/gossamer b/gossamer
index f94143cdb412dfb36597ce59d36ec420d14e5555..e02b81a8972611b734992f823f788ae099b5858f 160000 (submodule)
--- a/gossamer
+++ b/gossamer
@@ -1 +1 @@
-Subproject commit f94143cdb412dfb36597ce59d36ec420d14e5555
+Subproject commit e02b81a8972611b734992f823f788ae099b5858f