zend_hash_str_find_ptr_lc && zend_hash_find_ptr_lc Not C++ Friendly

### Description

ZEND_API functions from `zend_hash.h`, namely:
`zend_hash_str_find_ptr_lc`
`zend_hash_find_ptr_lc`

are not C++ friendly, i.e. the `extern "C"` modifier is not applied to them, whereas all other ZEND_API functions from the same file have it.

### PHP Version

PHP 8.4

### Operating System

_No response_