Drop to v2

Author: stephen-hill

.github/workflows/php.yml

@@ -18,7 +18,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up PHP
-        uses: shivammathur/setup-php@v3
+        uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php-version }}