Bump cecil

diff --git a/external/cecil b/external/cecil
index 229946f543f65db2b102188427cda4b68fc08ee6..5f93431f2d699e9b090a5a14db5941a18b1e171b 160000 (submodule)
--- a/external/cecil
+++ b/external/cecil
@@ -1 +1 @@
-Subproject commit 229946f543f65db2b102188427cda4b68fc08ee6
+Subproject commit 5f93431f2d699e9b090a5a14db5941a18b1e171b