Updated PHPStan to latest version

Added rector to allow fixing common linting issues

Author: Grotax

composer.json

@@ -32,9 +32,10 @@
     "require-dev": {
         "phpunit/phpunit": "~9.3.0",
         "monolog/monolog": "1.*|2.*",
-        "phpstan/phpstan": "^0.12.81",
+        "phpstan/phpstan": "^2.1.22",
         "friendsofphp/php-cs-fixer": "^3.5",
-        "php-http/mock-client": "^1.5"
+        "php-http/mock-client": "^1.5",
+        "rector/rector": "^2.1"
     },
     "suggest": {
         "monolog/monolog": "Allows to handle logs",

composer.lock

@@ -0,0 +1,7 @@
+parameters:
+    errorFormat: table
+    level: 5
+    paths:
+        - %currentWorkingDirectory%/src
+    bootstrapFiles:
+        - %currentWorkingDirectory%/vendor/autoload.php

phpstan.neon.dist

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Php84\Rector\Param\ExplicitNullableParamTypeRector;
+use Rector\ValueObject\PhpVersion;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__ . '/src',
+    ])
+    ->withPhpVersion(PhpVersion::PHP_84)
+    ->withRules([
+        ExplicitNullableParamTypeRector::class,
+    ]);

rector.php

@@ -5,7 +5,7 @@
 use FeedIo\Rule\DateTimeBuilder;
 use FeedIo\Standard\Atom;
 use FeedIo\Standard\Json;
-use PHPStan\Testing\TestCase;
+use PHPUnit\Framework\TestCase;
 use Psr\Log\NullLogger;
 
 class SpecificationTest extends TestCase