[TASK] Symfony 6 Upgrade (#4)

* [TASK] Symfony 6 Upgrade

* Drop PHP 7 support and update CI

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
       max-parallel: 4
       fail-fast: false
       matrix:
-        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1']
+        php-versions: ['8.0', '8.1', '8.2', '8.3']
     steps:
       - name: Checkout
         uses: actions/checkout@v3

.php-cs-fixer.dist.php

@@ -41,7 +41,7 @@
         ],
         'declare_strict_types' => true,
         'no_leading_import_slash' => true,
-        'no_trailing_comma_in_singleline_array' => true,
+        'no_trailing_comma_in_singleline' => true,
         'no_singleline_whitespace_before_semicolons' => true,
         'no_unused_imports' => true,
         'concat_space' => ['spacing' => 'one'],
@@ -55,7 +55,7 @@
         'no_blank_lines_after_phpdoc' => true,
         'array_syntax' => ['syntax' => 'short'],
         'whitespace_after_comma_in_array' => true,
-        'function_typehint_space' => true,
+        'type_declaration_spaces' => true,
         'single_line_comment_style' => true,
         'no_alias_functions' => true,
         'lowercase_cast' => true,

composer.json

@@ -10,14 +10,14 @@
         "optimize-autoloader": true
     },
     "require": {
-        "php": "^7.2 || ^8.0",
-        "symfony/dependency-injection": "^4.2 || ^5.4 || ^6.1",
-        "symfony/twig-bundle": "^4.2 || ^5.4 || ^6.1"
+        "php": "^8.0",
+        "symfony/dependency-injection": "^5.4 || ^6.4",
+        "symfony/twig-bundle": "^5.4 || ^6.4"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.0",
         "overtrue/phplint": "^3.0 || ^4.0 || ^5.0",
-        "symfony/phpunit-bridge": "^4.4 || ^5.4 || ^6.1"
+        "symfony/phpunit-bridge": "^5.4 || ^6.4"
     },
     "scripts": {
         "t3g:test:php:functional": [