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

doc/licenses/joda-time/NOTICE

@@ -2,8 +2,9 @@
 # URL:     https://www.joda.org/joda-time/
 # From:    'Joda.org' (https://www.joda.org/)
 # License: Apache v2.0
+# Source:  https://raw.githubusercontent.com/JodaOrg/joda-time/refs/tags/v${VERSION}/NOTICE.txt
 #
-# --- BEGIN LICENSE FILE ---
+# --- BEGIN LICENSE FILE [2.10.6] ---
 This product includes software developed by
 Joda.org (https://www.joda.org/).
-# --- END LICENSE FILE ---
+# --- END LICENSE FILE [2.10.6] ---