rule 2.2.19 - should be changed to mask rpcbind service and rpcbind.socket

[areh]

Describe the Issue
Similar to #235
ipa-client depends on rpcbind. Removing it in an enterprise environment would be catastrophic.

Expected Behavior
Securing rpcbind should not break the system.
ipa-client should never be allowed to be removed.

Actual Behavior
rpcbind and rpcbind.socket should be masked as per the CIS benchmark

Control(s) Affected
ipa-client could be removed, which would break an enterprise platform.

Environment (please complete the following information):
Not relevant

Possible Solution
Change code to something like this:

- name: "2.2.19 | PATCH | Ensure rpcbind and rpcbind.socket are masked"
  systemd:
    name: "{{ item }}"
    masked: yes
    state: stopped
  with_items:
    - rpcbind
    - rpcbind.socket