Update PHP setup action to specific commit version

Author: MaximillianGroup

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
               uses: actions/checkout@v4
 
             - name: Setup PHP
-              uses: shivammathur/setup-php@v2
+              uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1
               with:
                   php-version: ${{ matrix.php-version }}
                   extensions: mbstring, intl, json