Use PHP 8.2 for CI tests

Author: javiereguiluz

.github/workflows/tests.yaml

@@ -24,12 +24,12 @@ jobs:
         strategy:
             matrix:
                 operating-system: ['ubuntu-latest']
-                php-version: ['8.1']
+                php-version: ['8.2']
                 include:
                     - operating-system: 'macos-latest'
-                      php-version: '8.1'
+                      php-version: '8.2'
                     - operating-system: 'windows-latest'
-                      php-version: '8.1'
+                      php-version: '8.2'
 
         steps:
             - name: "Checkout code"