[BUG] "Error: The repository 'http://ppa.launchpad.net/...' does not have a Release file

[ColinMaudry]

Describe the bug

After add the PPA, I get an error message when I run sudo apt update, telling me the repository is not secure. That means I won't be able to update the app via the PPA.

E: The repository 'http://ppa.launchpad.net/go-for-it-team/go-for-it-stable/ubuntu impish Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

To Reproduce

1. On Ubuntu 21.10, add the PPA as describe in the main README

sudo add-apt-repository ppa:go-for-it-team/go-for-it-stable

2. Run sudo apt-get update

Expected behavior

Updating my repositories shouldn't return an error.

Screenshots

Command line output

OS and application version:

• OS: Ubuntu 21.10
• Application version: go-for-it amd64 1.8.7-2 [236 kB]
• Installation source: PPA

Additional context

[JosiahBull]

I am also facing this issue on Ubuntu 2204 - Jammy.