GitHub CLI renews GPG signing key for Linux packages

The GPG key used to verify GitHub CLI Debian and RedHat packages expired on Friday, September 6. If you have installed gh via our official package repositories, we ask that you update your keyring to the new key to continue verifying GitHub CLI releases.

Please refer to this documentation for instructions on how to do so with your respective package manager.

For reference, a note on this was also included in the CLI v2.56.0 release notes, published earlier this week.