PHP 8.2 environment added to CI (#290)

* Initial commit

* Use latest version of checkout action

Author: andrewdalpino

.github/workflows/ci.yml

@@ -9,11 +9,11 @@ jobs:
     strategy:
       matrix:
         operating-system: [windows-latest, ubuntu-latest, macos-latest]
-        php-versions: ['7.4', '8.0', '8.1']
+        php-versions: ['7.4', '8.0', '8.1', '8.2']
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2