fix: Drop PHP 8.0

Author: frankverhoeven

.github/workflows/test.yaml

@@ -9,7 +9,7 @@ jobs:
             -   uses: actions/checkout@v3
             -   uses: shivammathur/setup-php@v2
                 with:
-                    php-version: 8.0
+                    php-version: 8.1
                     coverage: none
             -   uses: ramsey/composer-install@v2
             -   id: set-php-versions

composer.json

@@ -20,7 +20,7 @@
         }
     },
     "require": {
-        "php": "^8.0",
+        "php": "^8.1",
         "composer/semver": "^3.3",
         "symfony/console": "^5.4 || ^6.0",
         "symfony/process": "^5.4 || ^6.0"