Changed CI to 8.3

Author: asantibanez

.github/workflows/phpunit.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: '8.3'
           extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, gd, exif, imagick, bcmath
           coverage: none