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

doc/licenses/apache-mina/NOTICE

@@ -2,11 +2,12 @@
 # URL:     https://mina.apache.org/
 # From:    'Apache Software Foundation' (https://www.apache.org/)
 # License: Apache v2.0
+# Source:  https://raw.githubusercontent.com/apache/mina/refs/tags/${VERSION}/NOTICE.txt
 #
-# --- BEGIN LICENSE FILE ---
+# --- BEGIN LICENSE FILE [2.2.4] ---
 Apache MINA
 Copyright 2007-2023 The Apache Software Foundation.
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
-# --- END LICENSE FILE ---
+# --- END LICENSE FILE [2.2.4] ---