fix(GHA): update some actions.

Author: uzulla

.github/workflows/test.yml

@@ -23,15 +23,15 @@ jobs:
 
         steps:
             - name: Checkout
-              uses: actions/checkout@v2
+              uses: actions/checkout@v4
 
             - name: Install PHP
               uses: shivammathur/setup-php@v2
               with:
                   php-version: ${{ matrix.php }}
 
             - name: Cache PHP dependencies
-              uses: actions/cache@v2
+              uses: actions/cache@v4
               with:
                   path: vendor
                   key: ${{ runner.os }}-php-${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}