contrib/csv-to-pgsql: add missing copyright header

Change-Id: Iad8b2c1abb6a80764d05c823fbd03a9eae0ec0ab

contrib/csv-to-pgsql.py

@@ -1,5 +1,23 @@
 #!/usr/bin/env python3
 
+# (C) 2025 by sysmocom - s.f.m.c. GmbH
+# All Rights Reserved
+#
+# Author: Philipp Maier
+#
+# 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
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 import argparse
 import logging
 import csv