[php-src] Issue #24265: Unwind/GracefulExit discarded in zend_fiber_execute()

Issue: https://github.com/php/php-src/issues/24265 Author: iluuu1994 ### Description zend_fiber_execute() calls zend_clear_exception() but doesn't transfer Unwind-/GracefulExits back to the calling context when the fiber has been destroyed. This happens when the fiber is resumed for finally. ```php <?php $fiber = new Fiber(function () { try { Fiber::suspend(); } finally { exit(1); } }); $fiber->start(); echo "Before destroy\n"; unset($fiber); echo "Not reached\n"; ``` Resulted in this output: ``` Before destroy Not reached ``` But I expected this output instead: ``` Before destroy ``` ### PHP Version ```plain 8.2+ ``` ### Operating System _No response_