Add script to (re-)generate GitHub deploy keys
Add script to (re-)generate GitHub deploy keys

These deploy keys were created manually so far. Let's keep them in a
shell script so that we don't need to remember which ones we need, and
how to re-generate them en masse if/when we need to.

Adapted from https://github.com/cockpit-project/cockpit-podman/commit/1616cf96b24

mvollmer/cockpit,cockpit-project/cockpit,martinpitt/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,martinpitt/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,martinpitt/cockpit,mvollmer/cockpit,mvollmer/cockpit,mvollmer/cockpit