testing/php7: backport latest CVEs
- CVE-2023-0567
- CVE-2023-0568
- CVE-2023-0662
Using commits from https://github.com/php/php-src/commits/PHP-8.0 backport of !44223 (merged)
Using commits from https://github.com/php/php-src/commits/PHP-8.0 backport of !44223 (merged)