[php-src] Issue #8205: America/Los_Angeles should match PDT on 2022-03-15

Issue: https://github.com/php/php-src/issues/8205 Author: kylekatarnls ### Description 👋 The following code: ```php <?php echo DateTime::createFromFormat('Y-m-d H:i', '2022-03-15 10:00', new DateTimeZone('America/Los_Angeles')) ->setTimezone(new DateTimeZone('UTC')) ->format('Y-m-d H:i:s T'); echo "\n"; echo DateTime::createFromFormat('Y-m-d H:i', '2022-03-15 10:00', new DateTimeZone('PDT')) ->setTimezone(new DateTimeZone('UTC')) ->format('Y-m-d H:i:s T'); ``` On 2022-03-15 those both timezones should match and it was the case until PHP 5.5.9, but since 5.5.10 it's no longer. Resulted in this output for 5.5.10 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.28, 8.0.0 - 8.0.17, 8.1.0 - 8.1.4: ``` 2022-03-15 17:00:00 UTC 2022-03-15 18:00:00 UTC ``` Resulted in this output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.9: ``` 2022-03-15 17:00:00 UTC 2022-03-15 17:00:00 UTC ``` But I expected this output instead: ``` 2022-03-15 17:00:00 UTC 2022-03-15 17:00:00 UTC ``` https://3v4l.org/uu12B#v5510 Thanks 🙏 ### PHP Version 8.1.4 ### Operating System _No response_