CI: add PHP 8.2 build

Author: glaubinix

.github/workflows/php.yml

@@ -19,9 +19,10 @@ jobs:
           - "7.4"
           - "8.0"
           - "8.1"
+          - "8.2"
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"