add php 8.3

Author: chriskapp

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Install PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.1
+          php-version: 8.2
           coverage: none
       - name: Composer install
         run: composer install --no-interaction --no-ansi --no-progress
@@ -26,6 +26,7 @@ jobs:
         php-versions:
           - 8.1
           - 8.2
+          - 8.3
     steps:
       - name: Checkout
         uses: actions/checkout@v2