Run CI on PHP 8.3/8.4 and update CI steps

Author: glaubinix

.github/workflows/ci.yaml

@@ -10,26 +10,19 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: [7.1, 7.2, 7.3, 7.4, 8.0, 8.1, 8.2]
+                php: [7.1, 7.2, 7.3, 7.4, 8.0, 8.1, 8.2, 8.3, 8.4]
         steps:
-            - uses: actions/checkout@v2
+            - uses: actions/checkout@v4
+
             - name: Install PHP ${{ matrix.php }}
               uses: "shivammathur/setup-php@v2"
               with:
                   coverage: "none"
                   ini-values: "memory_limit=-1, phar.readonly=0"
                   php-version: ${{ matrix.php }}
 
-            - name: "Determine composer cache directory"
-              id: "determine-composer-cache-directory"
-              run: "echo \"::set-output name=directory::$(composer config cache-dir)\""
-
-            - name: "Cache dependencies installed with composer"
-              uses: "actions/cache@v1"
-              with:
-                  path: "${{ steps.determine-composer-cache-directory.outputs.directory }}"
-                  key: "php-${{ matrix.php }}-ci"
-                  restore-keys: "php-${{ matrix.php }}"
+            - name: Install dependencies
+              uses: ramsey/composer-install@v3
 
             - name: "Install dependencies"
               run: composer update --no-progress -o --prefer-dist