Allow Symfony 8.x to be used

Author: mpdude

.github/workflows/tests.yml

@@ -16,6 +16,7 @@ jobs:
                     - { php-version: 8.1, symfony-version: '', dependency-version: prefer-lowest }
                     - { php-version: 8.3, symfony-version: 6.4.*, dependency-version: prefer-stable }
                     - { php-version: 8.4, symfony-version: 7.*, dependency-version: prefer-stable }
+                    - { php-version: 8.4, symfony-version: 8.*, dependency-version: prefer-stable }
         name: PHPUnit (PHP ${{matrix.php-version}}, Symfony version lock ${{ matrix.symfony-version || 'none' }}, ${{ matrix.dependency-version }})
         steps:
             -   uses: actions/checkout@v4

composer.json

@@ -20,11 +20,11 @@
 
     "require": {
         "php": ">= 8.1",
-        "symfony/config": "^6.4|^7.0",
-        "symfony/dependency-injection": "^6.4|^7.0",
+        "symfony/config": "^6.4 || ^7.3 || ^8.0",
+        "symfony/dependency-injection": "^6.4 || ^7.3 || ^8.0",
         "symfony/deprecation-contracts": "^3.0",
-        "symfony/http-foundation": "^6.4|^7.0",
-        "symfony/http-kernel": "^6.4|^7.0"
+        "symfony/http-foundation": "^6.4 || ^7.3 || ^8.0",
+        "symfony/http-kernel": "^6.4 || ^7.3 || ^8.0"
     },
 
     "require-dev": {