Updated to PHP version 8.3

Author: tlmcclatchey

.github/workflows/php.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: '8.3'
           extensions: mbstring, xml, ctype, iconv, intl, pdo_sqlite
           coverage: xdebug