We are experimenting with various ways of running and packaging the
bootstrap agent. To support this, let's add the required permissions
to both a standalone bootstrap-agent executable, as well as an app
bundled version of it, if found.
In addition, add the permissions to sshd-keygen-wrapper, which is
the responsible process for the SSH server, and any ssh login
sessions spawned by that. This serves two purposes. Firstly, this
matches the permissions between a coin run (by the bootstrap agent)
and what a developer will see when SSH'ing into the CI machine to
debug an issue. Secondly, we might use ssh as an entrypoint to
run the bootstrap-agent, in which case we need the permissions
on sshd-keygen-wrapper anyways, so that they are inherited by
the bootstrap-agent.
Pick-to: 6.8
Change-Id: I576349e93ca19d98384490c99102966e8ffe2833
Reviewed-by: Ville-Pekka Karhu <ville-pekka.karhu@qt.io>