Update Sizzle - qunit-fixture changes

diff --git a/src/sizzle b/src/sizzle
index 69ecd019852c1421cbd81fe6ceb4e22a81022ea7..4bcc09702d6dadfd0b90c7de3c8b206e97ff97f4 160000 (submodule)
--- a/src/sizzle
+++ b/src/sizzle
@@ -1 +1 @@
-Subproject commit 69ecd019852c1421cbd81fe6ceb4e22a81022ea7
+Subproject commit 4bcc09702d6dadfd0b90c7de3c8b206e97ff97f4