add setup-php to all ci jobs

.github/workflows/ci.yml

@@ -35,6 +35,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: '8.2'
     - name: Install composer dependencies
       run: composer install
     - name: Run phpstan
@@ -45,6 +49,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
       - name: Install php-cs-fixer
         run: composer global require friendsofphp/php-cs-fixer
       - name: Run php-cs-fixer