Fix sshd config validation when Match statements are used on OpenSSH 7

[mig5]

I have a statement like this in my sshd_config on OpenSSH 7.9 (Debian Buster):

Match Group foobar
    PasswordAuthentication yes
    ChrootDirectory %h/ftp_access
    X11Forwarding no
    AllowTcpForwarding yes
    ForceCommand internal-sftp

This Ansible role was failing to execute with this error:

| msg: failed to validate: rc:255 error:'Match Group' in configuration but 'user' not in connection test specification.

I found the same issue in another Ansible role:

dev-sec/ansible-ssh-hardening#188

and its associated PR fix:

dev-sec/ansible-ssh-hardening#202

The same fix in your role seems to work for me, so here's a PR for it!

[stale]

This pull request has been marked 'stale' due to lack of recent activity. If there is no further activity, the PR will be closed in another 30 days. Thank you for your contribution!

Please read this blog post to see the reasons why I mark pull requests as stale.

[stale]

This pull request has been closed due to inactivity. If you feel this is in error, please reopen the pull request or file a new PR with the relevant details.