Update opensaml2

diff --git a/shibboleth/opensaml2 b/shibboleth/opensaml2
index 4da890f..e94e023 160000 (submodule)
--- a/shibboleth/opensaml2
+++ b/shibboleth/opensaml2
@@ -1 +1 @@
-Subproject commit 4da890fad5f783cd97409c4d1219b0913c67887b
+Subproject commit e94e023141ac016c2326f828b05ecc18e3ff469a