Fix: update correct php version

Author: nikajorjika

.github/workflows/copilot-setup-steps.yml

@@ -30,6 +30,6 @@ jobs:
       - name: Set up PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.2'
+          php-version: '8.3'
       - name: Install composer dependencies
         run: composer install --prefer-dist --no-progress --no-interaction