remove composer.lock, add LC_ALL utf8

.gitignore

@@ -1,3 +1,4 @@
 /vendor
 
 tests/_output/*
+composer.lock

config/local.php

@@ -7,6 +7,7 @@ define('YII_ENV', 'prod');
 
 // zh_CN.UTF-8 => 中文,  en_US.UTF-8 => English
 setlocale(LC_ALL, 'zh_CN.UTF-8');
+putenv('LC_ALL=zh_CN.UTF-8');
 
 return [
     'components' => [