Update functionMap.php to fix return types and parameters #3726
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Fix for phpstan/phpstan#12148 (comment)
Fixing the signatures for the following functions :
apcu_cache_info()
apcu_sma_info()
And another one
strval()
setting the parameter value to mixed as defined https://www.php.net/manual/en/function.strval.php
Code snippet that reproduces the problem :
https://phpstan.org/r/f3e4b8de-f919-44d2-8b08-b979c5240693