Remove older versions of php

Author: exussum12

.github/workflows/ci.yaml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         operating-system: ['ubuntu-latest', 'windows-latest', 'macOS-latest']
-        php-version: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
+        php-version: ['8.0', '8.1', '8.2', '8.3']
     name: PHP ${{ matrix.php-version }} Test on ${{ matrix.operating-system }}
     steps:
       - name: Checkout code