Debian: use github cli stable release

Instead of distro codename, so it doesn't cause a problem if they
don't create the distro codename. Also the installation instructions
say to use stable: https://github.com/cli/cli/blob/trunk/docs/install_linux.md

Author: kenyon

data/os/family/Debian.yaml

@@ -91,7 +91,7 @@ apt::sources:
 
   github-cli:
     location: https://cli.github.com/packages
-    release: "%{facts.os.distro.codename}"
+    release: stable
     repos: main
     key:
       name: github-cli.gpg