GUACAMOLE-1956: Revert upgrade of SAML dependencies back to latest compatible.

doc/licenses/apache-santuario-2.2.6/NOTICE

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+Apache Santuario - XML Security for Java
+Copyright 1999-2022 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+It was originally based on software copyright (c) 2001, Institute for
+Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
+
+The development of this software was partly funded by the European 
+Commission in the <WebSig> project in the ISIS Programme. 
+
+This product contains software that is
+copyright (c) 2021, Oracle and/or its affiliates.