Modernize baton (Symfony 4 -> 8 etc)

.gitignore

@@ -16,6 +16,7 @@ phpunit.xml
 .idea/
 .bowerrc
 .php-cs-fixer.cache
+.phpunit.result.cache
 data
 webhookpassword
 authpasswords

bin/console

@@ -38,6 +38,6 @@ if ($_SERVER['APP_DEBUG']) {
     }
 }
 
-$kernel = new AppKernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
+$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
 $application = new Application($kernel);
 $application->run($input);

bin/php-cs-fixer

@@ -1,6 +1,6 @@
 #!/bin/bash -e
 
-PHP_CS_FIXER_VERSION=${PHP_CS_FIXER_VERSION:-3.62.0-php8.3}
+PHP_CS_FIXER_VERSION=${PHP_CS_FIXER_VERSION:-3.95.2-php8.4}
 if [ -t 1 ]; then TTY='--tty'; else TTY=''; fi
 
 exec docker run --rm --init --interactive $TTY -v $(pwd):/code ghcr.io/php-cs-fixer/php-cs-fixer:$PHP_CS_FIXER_VERSION fix "$@"

composer.json

@@ -3,20 +3,25 @@
     "type": "project",
     "description": "Composer Dependency Tracking",
     "require": {
-        "php": "^8.1",
-        "composer/composer": "^1.6",
-        "doctrine/doctrine-bundle": "^2.0",
-        "doctrine/doctrine-migrations-bundle": "^2.0",
-        "doctrine/migrations": "^2.0",
-        "doctrine/orm": "^2.5.14",
-        "sensio/framework-extra-bundle": "^5.0",
-        "symfony/swiftmailer-bundle": "^3.0",
-        "symfony/monolog-bundle": "^3.2.0",
-        "symfony/symfony": "^4.4.51"
+        "php": "^8.4",
+        "composer/composer": "^2.0",
+        "doctrine/dbal": "^4.0",
+        "doctrine/doctrine-bundle": "^3.0",
+        "doctrine/orm": "^3.0",
+        "symfony/asset": "^8.0",
+        "symfony/console": "^8.0",
+        "symfony/dotenv": "^8.0",
+        "symfony/form": "^8.0",
+        "symfony/framework-bundle": "^8.0",
+        "symfony/monolog-bundle": "^4.0",
+        "symfony/twig-bundle": "^8.0",
+        "symfony/validator": "^8.0",
+        "symfony/yaml": "^8.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.0",
-        "doctrine/doctrine-fixtures-bundle": "^3.0"
+        "phpunit/phpunit": "^13.0",
+        "doctrine/doctrine-fixtures-bundle": "^4.0",
+        "symfony/web-profiler-bundle": "^8.0"
     },
     "autoload": {
         "psr-4": {