[12746] Fix static analysis const reference performance warnings

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Автор: stfx


<pre style='white-space:pre-wrap;width:81ex'>[12746] Fix static analysis const reference performance warnings</pre>


Подробнее... (https://github.com/cmangos/mangos-wotlk/commit/bee22a1bed05477a5524a59bbc3b0ce8bd172718)