Add missing dependency of php-cs-fixer and update it

.github/workflows/php-cs-fixer.yml

@@ -19,9 +19,9 @@ jobs:
       -   name: Fix style
           uses: docker://oskarstark/php-cs-fixer-ga
           with:
-            args: --config=.php_cs --allow-risky=yes
+            args: --config=.php-cs-fixer --allow-risky=yes
 
       -   name: Commit changes
           uses: stefanzweifel/git-auto-commit-action@v4
           with:
-            commit_message: Fix styling
+            commit_message: Fix styling

.gitignore

@@ -4,4 +4,4 @@ docs
 vendor
 coverage
 .phpunit.result.cache
-.php_cs.cache
+.php-cs-fixer.cache

.php_cs → .php-cs-fixer.php

@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 $finder = Symfony\Component\Finder\Finder::create()
     ->in([
@@ -10,14 +10,14 @@
     ->ignoreDotFiles(true)
     ->ignoreVCS(true);
 
-return PhpCsFixer\Config::create()
+return (new PhpCsFixer\Config())
     ->setRules([
         '@PSR2' => true,
         'array_syntax' => ['syntax' => 'short'],
-        'ordered_imports' => ['sortAlgorithm' => 'alpha'],
+        'ordered_imports' => ['sort_algorithm' => 'alpha'],
         'no_unused_imports' => true,
         'not_operator_with_successor_space' => true,
-        'trailing_comma_in_multiline_array' => true,
+        'trailing_comma_in_multiline' => true,
         'phpdoc_scalar' => true,
         'unary_operator_spaces' => true,
         'binary_operator_spaces' => true,

composer.json

@@ -19,9 +19,10 @@
         "php": "^7.4 || ^8.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.0",
+        "friendsofphp/php-cs-fixer": "^3.0",
+        "phpunit/phpunit": "^9.5",
         "spatie/phpunit-snapshot-assertions": "^4.0",
-        "vimeo/psalm": "^4.7"
+        "vimeo/psalm": "^4.20"
     },
     "autoload": {
         "psr-4": {