Fix wrong variable name in LessThan and LessThanOrEqual asserts (OpenAPITools#3971)

* Fix wrong variable name in LessThan and LessThanOrEqual asserts

* After run ./bin/php-symfony-petstore.sh

Author: reznikartem

modules/openapi-generator/src/main/resources/php-symfony/api_input_validation.mustache

@@ -67,10 +67,10 @@
     {{/minimum}}
     {{#maximum}}
     {{#exclusiveMaximum}}
-        $asserts[] = new Assert\LessThan({{minimum}});
+        $asserts[] = new Assert\LessThan({{maximum}});
     {{/exclusiveMaximum}}
     {{^exclusiveMaximum}}
-        $asserts[] = new Assert\LessThanOrEqual({{minimum}});
+        $asserts[] = new Assert\LessThanOrEqual({{maximum}});
     {{/exclusiveMaximum}}
     {{/maximum}}
     {{#pattern}}

samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php

@@ -224,7 +224,7 @@ public function getOrderByIdAction(Request $request, $orderId)
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("int");
         $asserts[] = new Assert\GreaterThanOrEqual(1);
-        $asserts[] = new Assert\LessThanOrEqual(1);
+        $asserts[] = new Assert\LessThanOrEqual(5);
         $response = $this->validate($orderId, $asserts);
         if ($response instanceof Response) {
             return $response;