PHP 8.1 Compatibility Error

This is the following output when using php code sniffer to check for php 8.1 compatibility, should we fix this ourselves or wait for the next release? Thanks!

FILE: google-sitemap-generator\sitemap-core.php
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FOUND 1 ERROR AND 1 WARNING AFFECTING 2 LINES
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2204 | ERROR | Since PHP 7.0, functions inspecting arguments, like
| | debug_backtrace(), no longer report the original value as
| | passed to a parameter, but will instead provide the current
| | value. The parameter “$last_mod” was changed on line 2196.
2232 | WARNING | Since PHP 7.0, functions inspecting arguments, like
| | debug_backtrace(), no longer report the original value as
| | passed to a parameter, but will instead provide the current
| | value. The parameter “$type” was used, and possibly changed
| | (by reference), on line 2224.
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