comseong My understanding was same as you mentioned. But the automatic push was not worked over 10 hours by a bot since I had pushed the translations in Weblate.
Can you point which translation was not pushed automatically? I compared Weblate activity log and commits log and it seems to be fine.
Note that translations are exported to language pack regardless of translations status - marking translation as approved will not affect language pack.
Also, if you want to test your language pack, you probably should install it using
composer require flarum-lang/uzbek:dev-master - in that way you could test it before tagging new release.