feat(i18n): add payment method update error translation key

apps/browser/src/_locales/en/messages.json

@@ -6130,5 +6130,8 @@
   "sendPasswordHelperText": {
     "message": "Individuals will need to enter the password to view this Send",
     "description": "'Send' is a noun and the name of a feature called 'Bitwarden Send'. It should not be translated."
+  },
+  "paymentMethodUpdateError": {
+    "message": "There was an error updating your payment method."
   }
 }