Better variable name

Author: Israphel

.github/workflows/ci.yml

@@ -20,15 +20,15 @@ jobs:
           - 6379:6379
     strategy:
       matrix:
-        php-versions: ['7.3', '8.0']
+        version: ['7.3', '8.0']
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: ${{ matrix.php-versions }}
+          php-version: ${{ matrix.version }}
           extensions: mbstring, intl
           ini-values: post_max_size=256M, max_execution_time=180
           coverage: xdebug