update fleece submodule

jianminzhao · jianminzhao · commit 7dd29211f501 · 2026-05-01T20:39:15.000-07:00
diff --git a/vendor/fleece b/vendor/fleece
@@ -1 +1 @@
-Subproject commit 39b95cf39a9ebe0189fbe59c408443a358a11b92
+Subproject commit b4660dbcd94908b450dbeae1d3d7bc67ee6126c2
