implemented pipe closure with $next as the first parameter

src/Exceptions/PipeException.php

@@ -1,17 +1,14 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Pest\Exceptions;
 
 use Exception;
 
-class PipeException extends Exception
+final class PipeException extends Exception
 {
-    public static function optionalParmetersShouldBecomeRequired(string $expectationName): PipeException
-    {
-        return new self("You're attempting to pipe '$expectationName', but in pipelines optional parmeters should be declared as required)");
-    }
-
-    public static function expectationNotFound($expectationName): PipeException
+    public static function expectationNotFound(string $expectationName): PipeException
     {
         return new self("Expectation $expectationName was not found in Pest");
     }