Merge pull request 'Add use statement for add_filter function in Updater class' (#5) from docs/update-git-workflow into main

Reviewed-on: wpallstars/fix-plugin-does-not-exist-notices#5

includes/Updater.php

@@ -9,6 +9,8 @@
 
 namespace WPALLSTARS\FixPluginDoesNotExistNotices;
 
+use function add_filter;
+
 /**
  * Class Updater
  *