GH Actions: PHP 8.4 has been released

* Builds against PHP 8.4 are no longer allowed to fail.
* Add _allowed to fail_ build against PHP 8.5.
* Update the "tested against" badge in the README.

Ref: https://www.php.net/releases/8.4/en.php

.github/workflows/unit-tests.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.4' ]
+        php: [ '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.5' ]
         dependencies: [ 'lowest', 'stable' ]
         extensions: [ '' ]
         coverage: [false]
@@ -46,11 +46,11 @@ jobs:
             dependencies: 'lowest'
             extensions: ''
             coverage: true
-          - php: '8.3'
+          - php: '8.4'
             dependencies: 'stable'
             extensions: ''
             coverage: true
-          - php: '8.3'
+          - php: '8.4'
             dependencies: 'lowest'
             extensions: ''
             coverage: true
@@ -68,7 +68,7 @@ jobs:
             dependencies: 'dev'
             extensions: ''
             coverage: false
-          - php: '8.3'
+          - php: '8.4'
             dependencies: 'dev'
             extensions: ''
             coverage: false
@@ -79,7 +79,7 @@ jobs:
 
     name: PHP ${{ matrix.php }} on PHPCS ${{ matrix.dependencies }}
 
-    continue-on-error: ${{ matrix.php == '8.4' }}
+    continue-on-error: ${{ matrix.php == '8.5' }}
 
     steps:
       - name: Checkout repository

README.md

@@ -10,7 +10,7 @@
 [![codecov.io](https://codecov.io/gh/WordPress/WordPress-Coding-Standards/graph/badge.svg?token=UzFYn0RzVG&branch=develop)](https://codecov.io/gh/WordPress/WordPress-Coding-Standards?branch=develop)
 
 [![Minimum PHP Version](https://img.shields.io/packagist/php-v/wp-coding-standards/wpcs.svg?maxAge=3600)](https://packagist.org/packages/wp-coding-standards/wpcs)
-[![Tested on PHP 5.4 to 8.3](https://img.shields.io/badge/tested%20on-PHP%205.4%20|%205.5%20|%205.6%20|%207.0%20|%207.1%20|%207.2%20|%207.3%20|%207.4%20|%208.0%20|%208.1%20|%208.2%20|%208.3-green.svg?maxAge=2419200)](https://github.com/WordPress/WordPress-Coding-Standards/actions/workflows/unit-tests.yml)
+[![Tested on PHP 5.4 to 8.4](https://img.shields.io/badge/tested%20on-PHP%205.4%20|%205.5%20|%205.6%20|%207.0%20|%207.1%20|%207.2%20|%207.3%20|%207.4%20|%208.0%20|%208.1%20|%208.2%20|%208.3%20|%208.4-green.svg?maxAge=2419200)](https://github.com/WordPress/WordPress-Coding-Standards/actions/workflows/unit-tests.yml)
 
 [![License: MIT](https://poser.pugx.org/wp-coding-standards/wpcs/license)](https://github.com/WordPress/WordPress-Coding-Standards/blob/develop/LICENSE)
 [![Total Downloads](https://poser.pugx.org/wp-coding-standards/wpcs/downloads)](https://packagist.org/packages/wp-coding-standards/wpcs/stats)