Add Slovak post ;)

Hi,
please add this to \assets\js\couriers.js for posta.sk 😉

{
			"slug": "slovenska-posta",
			"name": "Slovenská pošta",
			"other_name": "Slovak Post",
			"required_fields": []
		},

many thanks and have a nice day

https://ww.wp.xz.cn/plugins/aftership-woocommerce-tracking/