feat: Support this role in container environments and builds

Feature: Support running the ssh role during container builds and in
container environments.

Reason: This is particularly useful for building bootc derivative OSes.
It's also desirable to run roles in system containers.

Result: These flags enable running the container scenarios in CI, which
ensures that the role works in podman system containers as well as
buildah build environment and thus allows us to officially support this
role for image mode builds.

See https://issues.redhat.com/browse/RHEL-78157

Author: martinpitt

meta/main.yml

@@ -53,4 +53,6 @@ galaxy_info:
     - ubuntuprecise
     - ubuntutrusty
     - ubuntuxenial
+    - container
+    - containerbuild
 dependencies: []