feat(isMobilePhone): add Frech Polynesia fr-PF locale

Create validation for frech polynesia mobile phones according to wikipedia:

https://en.wikipedia.org/wiki/Telephone_numbers_in_French_Polynesia#Mobile

Author: hereje

src/lib/isMobilePhone.js

@@ -85,6 +85,7 @@ const phones = {
   'fr-GF': /^(\+?594|0|00594)[67]\d{8}$/,
   'fr-GP': /^(\+?590|0|00590)[67]\d{8}$/,
   'fr-MQ': /^(\+?596|0|00596)[67]\d{8}$/,
+  'fr-PF': /^(\+?689)?8[789]\d{6}$/,
   'fr-RE': /^(\+?262|0|00262)[67]\d{8}$/,
   'he-IL': /^(\+972|0)([23489]|5[012345689]|77)[1-9]\d{6}$/,
   'hu-HU': /^(\+?36|06)(20|30|31|50|70)\d{7}$/,

test/validators.js

@@ -6885,6 +6885,28 @@ describe('Validators', () => {
           '+26261245789',
         ],
       },
+      {
+        locale: 'fr-PF',
+        valid: [
+          '87123456',
+          '88123456',
+          '89123456',
+          '+68987123456',
+          '+68988123456',
+          '+68989123456',
+          '68987123456',
+          '68988123456',
+          '68989123456',
+        ],
+        invalid: [
+          '7123456',
+          '86123456',
+          '87 12 34 56',
+          'definitely not a number',
+          '01+68988123456',
+          '6898912345',
+        ],
+      },
       {
         locale: 'ka-GE',
         valid: [