show-certs.sh doesn't show oidc client's oidc-auth-apps-certificate

[ayyappa]

Brief Description
-----------------
show-certs.sh doesn't show oidc client's oidc-auth-apps-certificate

Severity
------
Minor - this is a minor inconsistency, but is causing user confusion

Steps to Reproduce
-------------------
1)apply oidc app
2)run "show-certs.sh" script

sysadmin@controller-0:~$ sudo show-certs.sh | grep -A 9 "oidc-auth-apps-certificate"
grep: (standard input): binary file matches
grep: (standard input): binary file matches
grep: (standard input): binary file matches
grep: (standard input): binary file matches

Expected Behavior
----------------

the script should show the oidc certificate in the output

Actual Behavior
--------------
the script is failing to show the oidc cert in the output

Reproducibility
-------------------
100% Reproducible

System Configuration
------------------

all lab types

Load info (eg: 2022-03-10_20-00-07)

stx.8.0

Branch/Pull Time/Commit
-----------------------
NA.

Last Pass
--------
N/A Day one config

Timestamp/Logs
------------
NA.

Alarms
------
N/A

Test Activity
--------------
Debugging Request

Workaround
-----------
Not required.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/utilities/+/897498

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/utilities/+/897498
Committed: https://opendev.org/starlingx/utilities/commit/be3aa5503d635670627b3e98f50554c656cc9ecd
Submitter: "Zuul (22348)"
Branch: master

commit be3aa5503d635670627b3e98f50554c656cc9ecd
Author: amantri <email address hidden>
Date: Thu Oct 5 18:16:02 2023 -0400

    Fix to show the oidc certificates in the output of
    show-certs.sh script

    When oidc is applied, the show-certs script not showing
    the app certificates because the grep is failing, this fix
    addresses this issue by using '-a' option with grep to handle
    binary as text

    Test Cases:
    PASS: Apply oidc app and run the show-certs.sh script, verify
          oidc certificate is shown in the output

    Closes-Bug: 2038585

    Change-Id: Iea612b4d3dfe1aa24f09f8154720531f41a381ef
    Signed-off-by: amantri <email address hidden>