The original `go.yml` got added via some GH automation. But we
are not MSDOS and we can affort more than 3 chars for a file
extension - so this commit renames all .yml to .yaml which is
what we use everywhere else.
This commit adds a new workflow that runs the new `pytest` based
integration tests inside GH actions. It also extracts a common
`testdeps.yml` reusable workflow so that we do not duplicate the
package list of test dependencies.
This commit adds a smoke test that builds the ibcli container
and runs a fedora-41 raw-minimal build to double check that
the container based building actually works.
Thanks to Ondrej for suggesting this.