Use of deprecated functions in IGOR

[LMS235]

After Upgrade to Igor:

2022-08-01 08:39:06 utf8_ucfirst() is deprecated. It was called from syntax_plugin_bureaucracy::prepareNamespacetemplateReplacements() in /wiki/lib/plugins/bureaucracy/syntax.php:583 dokuwiki\Utf8\PhpString::ucfirst() should be used instead! 2022-08-01 08:39:06 utf8_strtoupper() is deprecated. It was called from syntax_plugin_bureaucracy::prepareNamespacetemplateReplacements() in /wiki/lib/plugins/bureaucracy/syntax.php:584 dokuwiki\Utf8\PhpString::strtoupper() should be used instead! 2022-08-01 08:39:06 utf8_ucfirst() is deprecated. It was called from syntax_plugin_bureaucracy::prepareNamespacetemplateReplacements() in /wiki/lib/plugins/bureaucracy/syntax.php:586 dokuwiki\Utf8\PhpString::ucfirst() should be used instead! 2022-08-01 08:39:06 utf8_ucwords() is deprecated. It was called from syntax_plugin_bureaucracy::prepareNamespacetemplateReplacements() in /wiki/lib/plugins/bureaucracy/syntax.php:587 dokuwiki\Utf8\PhpString::ucwords() should be used instead! 2022-08-01 08:39:06 utf8_strtoupper() is deprecated. It was called from syntax_plugin_bureaucracy::prepareNamespacetemplateReplacements() in /wiki/lib/plugins/bureaucracy/syntax.php:588 dokuwiki\Utf8\PhpString::strtoupper() should be used instead!