Update copyright notices

gridded_glm/bin/cspp-geo-gglm.sh

 #!/usr/bin/env bash
 # encoding: utf-8
-# Copyright (C) 2019-2021 Space Science and Engineering Center (SSEC),
+# Copyright (C) 2019-2025 Space Science and Engineering Center (SSEC),
 #  University of Wisconsin-Madison.
 #
 #     This program is free software: you can redistribute it and/or modify

gridded_glm/libexec/env.sh

 #!/usr/bin/env bash
 # encoding: utf-8
-# Copyright (C) 2019 Space Science and Engineering Center (SSEC),
+# Copyright (C) 2019-2025 Space Science and Engineering Center (SSEC),
 #  University of Wisconsin-Madison.
 #
 #     This program is free software: you can redistribute it and/or modify

gridded_glm/libexec/gridded_glm/_minute_gridder.py

 #!/usr/bin/env python3
 """
-Copyright (C) 2020-2021 Space Science and Engineering Center (SSEC), University of Wisconsin-Madison.
+Copyright (C) 2020-2025 Space Science and Engineering Center (SSEC), University of Wisconsin-Madison.
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by

gridded_glm/libexec/gridded_glm/statistics.py

 #!/usr/bin/env python3
 """
-Copyright (C) 2022 Space Science and Engineering Center (SSEC), University of Wisconsin-Madison.
+Copyright (C) 2022-2025 Space Science and Engineering Center (SSEC), University of Wisconsin-Madison.
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by