Upgrade to oik v4.9.2 for support for PHP 8.1 and PHP 8.2

Changes
Change | Reference |
---|---|
Changed: Support PHP 8.1 and PHP 8.2 | bobbingwide/oik#220 |
Changed: Adjust test to work when WooCommerce is activated | bobbingwide/oik#217 |
Changed: Add/update translators comments | bobbingwide/oik#219 |
Tested
- Tested: With WordPress 6.3.1 and WordPress Multisite
- Tested: With Gutenberg 16.6.0
- Tested: With PHP 8.1 and PHP 8.2
- Tested: With PHPUnit 9.6