Remove dependency on getdkan/contracts (#39)

composer.json

@@ -11,14 +11,15 @@
     "require": {
         "php": ">=7.4 <8.4",
         "ext-curl": "*",
-        "getdkan/procrastinator": "^5.0.2",
+        "getdkan/procrastinator": "^5.0.3",
         "guzzlehttp/guzzle": "^6.5.8 || ^7.4.5"
     },
     "require-dev": {
+        "getdkan/contracts": "^1.2",
         "getdkan/mock-chain": "^1.3.6",
         "mikey179/vfsstream": "^1.6.11",
         "phpunit/phpunit": "^9.6",
-        "rector/rector": "^0.15.18",
+        "rector/rector": "^1@stable",
         "squizlabs/php_codesniffer": "^3.7",
         "symfony/phpunit-bridge": "^7.0"
     },

rector.php

@@ -6,15 +6,14 @@
 use Rector\DeadCode\Rector\ClassMethod\RemoveUselessParamTagRector;
 use Rector\DeadCode\Rector\ClassMethod\RemoveUselessReturnTagRector;
 use Rector\DeadCode\Rector\Property\RemoveUselessVarTagRector;
-use Rector\Php73\Rector\FuncCall\JsonThrowOnErrorRector;
 use Rector\Set\ValueObject\SetList;
-use Rector\TypeDeclaration\Rector\ClassMethod\ArrayShapeFromConstantArrayReturnRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\AddMethodCallBasedStrictParamTypeRector;
 
 return static function (RectorConfig $rectorConfig): void {
     $rectorConfig->paths([
         __DIR__ . '/src',
         __DIR__ . '/test',
+        __DIR__ . '/rector.php',
     ]);
 
     $rectorConfig->sets([
@@ -26,14 +25,10 @@
     ]);
 
     $rectorConfig->skip([
-        // Don't throw errors on JSON parse problems. Yet.
-        // @todo Throw errors and deal with them appropriately.
-        JsonThrowOnErrorRector::class,
         // We like our tags. Please don't remove them.
         RemoveUselessParamTagRector::class,
         RemoveUselessReturnTagRector::class,
         RemoveUselessVarTagRector::class,
-        ArrayShapeFromConstantArrayReturnRector::class,
         AddMethodCallBasedStrictParamTypeRector::class,
     ]);
 

src/Processor/AbstractChunkedProcessor.php

@@ -71,7 +71,7 @@ public function copy(array $state, Result $result, int $timeLimit = PHP_INT_MAX)
         return ['state' => $state, 'result' => $result];
     }
 
-    private function validateWrite(int $bytesWritten, string $chunk, string $source, string $destination)
+    private function validateWrite(int $bytesWritten, string $chunk, string $source, string $destination): void
     {
         if ($bytesWritten !== strlen($chunk)) {
             throw new \RuntimeException(