Using IconRegistry in ext_localconf.php is deprecated

Wed, 30 Apr 2025 10:19:21 +0200 [NOTICE] request="319bcb29ea8c8" component="TYPO3.CMS.deprecations": Core: Error handler (BE): TYPO3 Deprecation Notice: Instantiating \TYPO3\CMS\Core\Imaging\IconRegistry in ext_localconf.php should be replaced by either Configuration/Icons.php or by listening to \TYPO3\CMS\Core\Core\Event\BootCompletedEvent in /var/www/html/vendor/typo3/cms-core/Classes/ServiceProvider.php line 382

Migration to Configuration/Icons.php is easy but it would require to drop support for TYPO3 versions < 11.4.

Is this OK? I can provide a patch then.

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