feat(isMobilePhone): add Laos (la-LA) phone number regex

Author: Sagar141005

src/lib/isMobilePhone.js

@@ -121,6 +121,7 @@ const phones = {
   'kl-GL': /^(\+?299)?\s?\d{2}\s?\d{2}\s?\d{2}$/,
   'ko-KR': /^((\+?82)[ \-]?)?0?1([0|1|6|7|8|9]{1})[ \-]?\d{3,4}[ \-]?\d{4}$/,
   'ky-KG': /^(\+996\s?)?(22[0-9]|50[0-9]|55[0-9]|70[0-9]|75[0-9]|77[0-9]|880|990|995|996|997|998)\s?\d{3}\s?\d{3}$/,
+  'la-LA': /^(\+?856|0)(20)\d{8}$/,
   'lt-LT': /^(\+370|8)\d{8}$/,
   'lv-LV': /^(\+?371)2\d{7}$/,
   'mg-MG': /^((\+?261|0)(2|3)\d)?\d{7}$/,