Invitation not accepted/ expired

### Describe the Bug

I am unable to invite any new user to the system.
The link is generated, is sent to user, but when it is opened new user receive error:
invitation not accepted. Expired.

The issue was described in #1355

### Environment

- OS Type & Version: (e.g., Ubuntu 22.04)
- Pangolin Version: 1.15.2
- Gerbil Version: latest
- Traefik Version: latest
- Newt Version: 1.18
- Olm Version: (if applicable)

### To Reproduce

Invite new user.
The genrated link send by email does not work.
Invitation not accepted

### Expected Behavior

User can create own password