[Tools] Add 2.4.9-beta1 as experimental for PHPStan

Author: rbayet

.github/workflows/02-phpstan.yml

@@ -39,14 +39,22 @@ jobs:
           - php-versions: '8.3'
             magento-versions: '2.4.7-p8'
             magento-editions: 'enterprise'
-            experimental: true
+            experimental: false
           - php-versions: '8.3'
             magento-versions: '2.4.8-p3'
             magento-editions: 'enterprise'
-            experimental: true
+            experimental: false
           - php-versions: '8.4'
             magento-versions: '2.4.8-p3'
             magento-editions: 'enterprise'
+            experimental: false
+          - php-versions: '8.4'
+            magento-versions: '2.4.9-beta1'
+            magento-editions: 'enterprise'
+            experimental: true
+          - php-versions: '8.5'
+            magento-versions: '2.4.9-beta1'
+            magento-editions: 'enterprise'
             experimental: true
 
     continue-on-error: ${{ matrix.experimental }}