add cgroup v2 support

[Krishnacore]

Description

At the moment, the action does not work when launching the container on a system with cgroup v2. cat /proc/self/cgroup inside a container with mounted socket on host with cgroup v1:

0::/docker/a796003601f83ca28aa4139aa099cf3b2993d0ec6aa492be4018c58d60afc905

The same with cgroup v2 (The container must be launched with --cgroupns host):

0::/system.slice/docker-0697bf0ca3821b4f65e29f8f80fa7724f80614cae3f325d8ecc4770ed9116a74.scope

This way we will handle both cases

Checklist

• [ ] Tested changes against a test repository
• [ ] Added or updated relevant documentation (leave unchecked if not applicable)
• [ ] (If this PR is for a release) Updated README to point to the new tag (leave unchecked if not applicable)