[PHP-WEBMASTER] [web-php] PR #1270: fix: language pt_BR option.

[marcosmarcolin]

Pull Request: https://github.com/php/web-php/pull/1270
Author: marcosmarcolin

Hi,

_Brazilian Portuguese_ are already Brazilian words.

In English, the correct way to use _Brazilian Portuguese_ is as follows: 
https://github.com/php/web-php/blob/master/src/I18n/Languages.php#L23

Releases page:
![image](https://github.com/user-attachments/assets/72659b0e-9950-4f6f-b23e-9f623f8ce2e7)

Docs page:
![image](https://github.com/user-attachments/assets/e9eeec6d-15d1-4a3e-956a-a69a69ad9690)

(I'm Brazilian).