appmodel: convert app-parser-generator to the GPL license

This was filed incorrectly when implemented back in 2017. LGPL allows
us to convert LGPL to GPL (Terms, Section 3), please see the details below.

3. You may opt to apply the terms of the ordinary GNU General Public
License instead of this License to a given copy of the Library. To
do this, you must alter all the notices that refer to this License,
so that they refer to the ordinary GNU General Public License,
version 2, instead of to this License. (If a newer version than
version 2 of the ordinary GNU General Public License has appeared,
then you can specify that version instead if you wish.) Do not make
any other change in these notices.

Once this change is made in a given copy, it is irreversible for that
copy, so the ordinary GNU General Public License applies to all
subsequent copies and derivative works made from that copy.

This option is useful when you wish to copy part of the code of the
Library into a program that is not a library.

Signed-off-by: Balazs Scheidler <[email protected]>

modules/appmodel/app-parser-generator.c

@@ -1,19 +1,19 @@
 /*
  * Copyright (c) 2017 Balabit
  * Copyright (c) 2017 Balazs Scheidler <[email protected]>
+ * Copyright (c) 2024 Balazs Scheidler <[email protected]>
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  *
  * As an additional exemption you are allowed to compile & link against the