remove exceptions property when debug is false (#133)

Author: cnizzardini

plugins/exception-render/src/MixerApiExceptionRenderer.php

@@ -137,6 +137,7 @@ private function debugViewVars($exception, array $viewVars): array
     {
         if (!Configure::read('debug')) {
             unset($viewVars['error']);
+            unset($viewVars['exceptions']);
 
             return $viewVars;
         }

plugins/exception-render/tests/TestCase/ControllerTest.php

@@ -81,5 +81,6 @@ public function test_validation_exception_with_cakephp_debug_off(): void
 
         $this->assertFalse(isset($object->trace));
         $this->assertFalse(isset($object->error));
+        $this->assertFalse(isset($object->exceptions));
     }
 }