Debain: ldap user is not added to sudoers list

[Andy]

Brief Description
-----------------
ldap user "admin", as well as newly created ldap user with sudo enabled, are not in sudoer list. They can't run command with sudo.

Severity
--------
Major: ldap users with sudo enabled can't run command with sudo

Steps to Reproduce
------------------
- create a ldap user by ldapusersetup, with the following option set to "yes":
  Add <username> to sudoer list? (yes/NO): yes

- login to the system by the newly created ldap user.
- run sudo ls

Expected Behavior
------------------
"sudo ls" succeed.

Actual Behavior
----------------
"sudo ls" failed with error:

ldapuser06@controller-0:~$ sudo ls
Password:
<username> is not in the sudoers file. This incident will be reported.

Reproducibility
---------------
100% reproducible

System Configuration
--------------------
Any

Branch/Pull Time/Commit
-----------------------
stx master latest.

Last Pass
---------
Always pass on CentOS. Unknown on Debian.

Timestamp/Logs
--------------
See "Steps to Reproduce".

Test Activity
-------------
Regression Testing

Workaround
----------
NA

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/tools/+/848023

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/tools/+/848023
Committed: https://opendev.org/starlingx/tools/commit/33fac16e85e4b6f9c694dfaa6a6868ac1763af0d
Submitter: "Zuul (22348)"
Branch: master

commit 33fac16e85e4b6f9c694dfaa6a6868ac1763af0d
Author: Andy Ning <email address hidden>
Date: Tue Jun 28 14:48:08 2022 -0400

    Debian: replace package sudo with sudo-ldap

    The current sudo package doesn't compiled with LDAP support.
    Replace it with sudo-ldap which allows an equivalent of the
    sudoers database to be distributed via LDAP. With sudo-ldap,
    ldap users created with sudo privilege can run commands with
    sudo.

    Test Plan on Debian:
    PASS: image build.
    PASS: system bootstrap, unlock.
    PASS: create ldap users with sudo privilege, login system
          by the user, run sudo such as "sudo ls", observe the
          commands run successfully.

    Closes-Bug: 1980140
    Signed-off-by: Andy Ning <email address hidden>
    Change-Id: Ia115022c293205b9c70d3fb8696ac8f3050f0f63