GUACAMOLE-2139: Add automatic retrieval of license information where absent. Remove unused license info.

doc/licenses/java-saml/LICENSE

@@ -2,8 +2,9 @@
 # URL:     https://github.com/onelogin/java-saml
 # From:    'OneLogin' (https://www.onelogin.com)
 # License: MIT
+# Source:  https://raw.githubusercontent.com/SAML-Toolkits/java-saml/refs/tags/v${VERSION}/LICENSE
 #
-# --- BEGIN LICENSE FILE ---
+# --- BEGIN LICENSE FILE [2.9.0] ---
 Copyright (c) 2010-2016 OneLogin, Inc.
 
 Permission is hereby granted, free of charge, to any person
@@ -26,4 +27,4 @@ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
-# --- END LICENSE FILE ---
+# --- END LICENSE FILE [2.9.0] ---