Update phpcs.yml

.github/workflows/phpcs.yml

@@ -32,7 +32,7 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-php-
     - name: Install dependencies
-      run: composer install --prefer-dist --no-progress
+      run: composer install --prefer-dist --no-progress --ignore-platform-req=php
 
     # Add a test script to composer.json, for instance: "test": "vendor/bin/phpunit"
     # Docs: https://getcomposer.org/doc/articles/scripts.md