Enable chmod action and execute_filemode attribute in Repositories api (#698)

Author: lothid

src/Api/Repositories.php

@@ -307,7 +307,7 @@ public function createCommit($project_id, array $parameters = [])
                 $actionsOptionsResolver = new OptionsResolver();
                 $actionsOptionsResolver->setDefined('action')
                     ->setRequired('action')
-                    ->setAllowedValues('action', ['create', 'delete', 'move', 'update'])
+                    ->setAllowedValues('action', ['create', 'delete', 'move', 'update', 'chmod'])
                 ;
                 $actionsOptionsResolver->setDefined('file_path')
                     ->setRequired('file_path')
@@ -317,6 +317,9 @@ public function createCommit($project_id, array $parameters = [])
                 $actionsOptionsResolver->setDefined('encoding')
                     ->setAllowedValues('encoding', ['text', 'base64'])
                 ;
+                $actionsOptionsResolver->setDefined('execute_filemode')
+                    ->setAllowedValues('execute_filemode', [true, false])
+                ;
 
                 return \array_map(function ($action) use ($actionsOptionsResolver) {
                     return $actionsOptionsResolver->resolve($action);