ci: make molecule podman scenario use podman as driver

copied how to adapt from robertdebock/ansible-role-bootstrap#66 (comment)

Author: JonasPammer

molecule/podman/molecule.yml

@@ -8,15 +8,12 @@ lint: |
   set -e
   ansible-lint
 driver:
-  name: docker
+  name: podman
 platforms:
   # service-enabled Docker image by geerlingguy
   - name: instance-${TOX_ENVNAME}-${MOLECULE_DISTRO:-debian10}
     image: "geerlingguy/docker-${MOLECULE_DISTRO:-debian10}-ansible:latest"
     command: ${MOLECULE_DOCKER_COMMAND:-""}
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    privileged: true
     pre_build_image: true
 provisioner:
   name: ansible