chore: update php installation in ci (#22)

Author: josecorella

.github/workflows/test.yml

@@ -37,8 +37,7 @@ jobs:
       - name: Set up PHP with Composer
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.4'
-          tools: composer:v2
+          php-version: '8.1' 
 
       - name: Install PHP V2 dependencies
         working-directory: ./test-server/php-v2-server