[FIX] link_tracker: do not track 'tel:' or 'sms:' links

- Create a mass mailing including a 'tel' or 'sms' link, e.g.
  `<a href="tel:555-000-0000">555-000-0000</a>`
- When sent, the link is converted to a tracked linked (`http://...`)

We do not want to convert these links, they should be handled by the
browser directly.

opw-765885

addons/link_tracker/models/link_tracker.py

@@ -15,7 +15,7 @@ from werkzeug import url_encode, unescape
 from odoo import models, fields, api, _
 from odoo.tools import ustr
 
-URL_REGEX = r'(\bhref=[\'"](?!mailto:)([^\'"]+)[\'"])'
+URL_REGEX = r'(\bhref=[\'"](?!mailto:|tel:|sms:)([^\'"]+)[\'"])'
 
 def VALIDATE_URL(url):
     if urlparse(url).scheme not in ('http', 'https', 'ftp', 'ftps'):