Fixed Laravel 6.8 conflict (#343)

Co-authored-by: Andrey Toropin <[email protected]>

Author: atoropin

src/Console/SearchableModelMakeCommand.php

@@ -34,14 +34,14 @@ protected function getOptions()
 
         $options[] = [
             'index-configurator',
-            'i',
+            null,
             InputOption::VALUE_REQUIRED,
             'Specify the index configurator for the model. It\'ll be created if doesn\'t exist.',
         ];
 
         $options[] = [
             'search-rule',
-            's',
+            null,
             InputOption::VALUE_REQUIRED,
             'Specify the search rule for the model. It\'ll be created if doesn\'t exist.',
         ];