This issue occurs when a customer creates Appointments and then attempts to select the Appointments type ,at that time error will be generated. step to reproduce: - Install the `appointments` Module.…

This issue occurs when a customer creates Appointments and then attempts to select the Appointments type ,at that time error will be generated.

step to reproduce:
- Install the `appointments` Module.
- click on `Reporting > Appointments` menu.
- open list view.
- create new Appointments(Enter only Meeting Subject) .
- after select Appointments type.
- the error will be generated.

sentry traceback-
```
AttributeError: 'mail.tracking.value' object has no attribute 'field'
  File "odoo/http.py", line 2157, in __call__
    response = request._serve_db()
  File "odoo/http.py", line 1732, in _serve_db
    return service_model.retrying(self._serve_ir_http, self.env)
  File "odoo/service/model.py", line 133, in retrying
    result = func()
  File "odoo/http.py", line 1759, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "odoo/http.py", line 1960, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "addons/website/models/ir_http.py", line 235, in _dispatch
    response = super()._dispatch(endpoint)
  File "odoo/addons/base/models/ir_http.py", line 207, in _dispatch
    result = endpoint(**request.params)
  File "odoo/http.py", line 722, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "home/odoo/src/enterprise/17.0/knowledge/controllers/article_thread.py", line 47, in mail_thread_messages
    return super().mail_thread_messages(thread_model, thread_id, **kwargs)
  File "odoo/http.py", line 722, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "addons/mail/controllers/thread.py", line 28, in mail_thread_messages
    return {**res, "messages": res["messages"].message_format()}
  File "home/odoo/src/enterprise/17.0/whatsapp/models/mail_message.py", line 48, in message_format
    vals_list = super().message_format(*args, **kwargs)
  File "addons/sms/models/mail_message.py", line 42, in message_format
    message_values = super(MailMessage, self).message_format(format_reply=format_reply, msg_vals=msg_vals)
  File "addons/rating/models/mail_message.py", line 30, in message_format
    message_values = super().message_format(format_reply=format_reply, msg_vals=msg_vals)
  File "addons/mail/models/mail_message.py", line 1033, in message_format
    vals_list = self._message_format(self._get_message_format_fields(), format_reply=format_reply)
  File "addons/im_livechat/models/mail_message.py", line 34, in _message_format
    vals_list = super()._message_format(fnames=fnames, format_reply=format_reply)
  File "addons/mail/models/mail_message.py", line 929, in _message_format
    displayed_tracking_ids = record_sudo._track_filter_for_display(displayed_tracking_ids)
  File "home/odoo/src/enterprise/17.0/appointment/models/calendar_event.py", line 204, in _track_filter_for_display
    return tracking_values.filtered(lambda t: t.field.name != 'active')
  File "odoo/models.py", line 6082, in filtered
    return self.browse([rec.id for rec in self if func(rec)])
  File "odoo/models.py", line 6082, in <listcomp>
    return self.browse([rec.id for rec in self if func(rec)])
  File "home/odoo/src/enterprise/17.0/appointment/models/calendar_event.py", line 204, in <lambda>
    return tracking_values.filtered(lambda t: t.field.name != 'active')
```

https://github.com/odoo/enterprise/blob/17.0/appointment/models/calendar_event.py#L204

There is no 'field' name of fields accessible in the mail.tracking.value model, but there is `field_id` name fields accessible in that model.

after this commit, While creating an appointment, the customer will be able to select an appointment type.

sentry-4629475865