feat(isMobilePhone): add Cambodia (km-KH) phone number regex

Author: Sagar141005

src/lib/isMobilePhone.js

@@ -119,6 +119,7 @@ const phones = {
   'ka-GE': /^(\+?995)?(79\d{7}|5\d{8})$/,
   'kk-KZ': /^(\+?7|8)?7\d{9}$/,
   'kl-GL': /^(\+?299)?\s?\d{2}\s?\d{2}\s?\d{2}$/,
+  'km-KH': /^(\+855|0)(1[0-24-8]|31|6[016-9]|7[016-8]|8[15-9]|9[0235-9])\d{6,7}$/,
   'ko-KR': /^((\+?82)[ \-]?)?0?1([0|1|6|7|8|9]{1})[ \-]?\d{3,4}[ \-]?\d{4}$/,
   'ky-KG': /^(\+996\s?)?(22[0-9]|50[0-9]|55[0-9]|70[0-9]|75[0-9]|77[0-9]|880|990|995|996|997|998)\s?\d{3}\s?\d{3}$/,
   'lt-LT': /^(\+370|8)\d{8}$/,