Operating System/Distribution

Which distribution of Linux are you using?
Debian Stable (v11 Bullseye) amd64

Installer

Which version of the app?
The latest version available right now.
Which installer type?
.deb amd64

What happened?

Err:6 https://packagecloud.io/shiftkey/desktop/any any InRelease               
  403  Forbidden [IP: 192.168.1.1 3128]
Reading package lists... Done                          
E: Failed to fetch https://packagecloud.io/shiftkey/desktop/any/dists/any/InRelease  403  Forbidden [IP: 192.168.1.1 3128]
E: The repository 'https://packagecloud.io/shiftkey/desktop/any any InRelease' is not signed.

Probably this issue is not related with a misconfiguration of the repository but due to the trade embargo imposed by the US government to Cuban citizens. I'm asking politely to look if there is any change to make a mirror available with another service (Maybe something like the Suse Open Build System will work, I know it works here in Cuba without 403 error)