Update PHP versions and actions in workflow

Author: bernard-ng

.github/workflows/test.yaml

@@ -7,11 +7,11 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                php: [ '8.2', '8.3' ]
+                php: [ '8.2', '8.3', '8.4' ]
 
         steps:
             - name: Checkout
-              uses: actions/checkout@v2
+              uses: actions/checkout@v4
 
             - name: Setup PHP
               uses: shivammathur/setup-php@v2
@@ -23,7 +23,7 @@ jobs:
               run: echo "COMPOSER_CACHE_DIR=$(composer config cache-dir)" >> $GITHUB_ENV
 
             - name: Cache dependencies installed with composer
-              uses: actions/cache@v2
+              uses: actions/cache@v4
               with:
                   path: ${{ env.COMPOSER_CACHE_DIR }}
                   key: php${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}
@@ -37,4 +37,4 @@ jobs:
               run: composer install --prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi
 
             - name: Run tests
-              run: make test
+              run: make test