[php-src] Issue #13670: Segfault when GC is put on limits

Issue: https://github.com/php/php-src/issues/13670 Author: mvorisek ### Description The following code: repro: https://3v4l.org/Wo4ZO When $i = 20 (on l208) is changed to $i = 15, then the repro completes without any issue. I guess the repro hits some internal limitation of php-src GC or destructors. The repro creates a weakmap with 20 x 100 items and each item has wrapper with reference cycle. This represents about 10k living objects which php must handle easily. Resulted in this output: ``` Process exited with code 137. ``` But I expected this output instead: no segfault ### PHP Version any (tested 7.4, 8.2, 8.3, master) ### Operating System any (tested Windows, linux)