Fix Python deprecation warning

Peter Eisentraut <peter@eisentraut.org>

Commit: 16686a853f1b0f479fbe716acecb3a264e70c824
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2026-03-06T09:31:59Z
Fix Python deprecation warning

Starting with Python 3.14, contrib/unaccent/generate_unaccent_rules.py
complains

    DeprecationWarning: codecs.open() is deprecated. Use open() instead.

This makes that change.  This works for all Python 3.x versions.

Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/2a668979-ed92-49a3-abf9-a3ec2d460ec2%40eisentraut.org

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contrib/unaccent/generate_unaccent_rules.py modified +1 −1

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